We have only been using this seat for a few days and I love it! It is so easy to install with the Click Tight. I also know that it will fit my super tall child for a long time because the harness has the tallest height limits of the seats out there now. Very happy!

I bought this car seat for my 7-year-old who is 48 inches tall. I wanted to get a big kid car seat with a 5-point harness that she could stay in it as long as she can, and I was very happy to see that this seat can keep her in the harness mode up to 58 inches! I understood that the recent regulation change has put an upper weight limit for the LATCH system, so I had to use the car's seat belt to secure it instead of the LATCH. I was pretty impressed by the ClickTight installation system and how securely it allowed me to install it. (Typically tightening the LATCH belt used to take all of my weight and strength to do it.)

The Frontier 90 lives up to its reputation. It is easy to install, and a perfect fit for my 2.5 year old toddler. When he falls asleep in it, his head never falls forward, and he loves the arm rests. I recommend this carseat without hesitation.

I love the Frontier 90, the make is very sturdy. 2 cup holder and I also bought the mat to go in the car seat that is made by Britax to catch food dropping or bathroom accidents.

Bought this for my son because we had to move his little sister to his Britax Boulevard seat. So far, it's been a great seat. I did a lot of research prior to picking this model and was originally concerned with the ClickTight system but it turns out to be very easy to use. You just have to find the right point of how much slack to give the belt so it clicks in tight. My only complaint (which I read others complaining about too) is that the harness doesn't always feel like you can pull it tight. I have to pull it adjust, pull again, adjust and pull again to get it snug enough. It's a minor inconvenience though for a solid child seat. I would definitely recommend this seat and even better that it's a booster that you can take on a plane

Very happy with our purchase. Love the click tight installation system. Our daughter is totally rapt with her seat, especially the armrests and cup holders.

A Britax car seat saved my son's life. This model is perfect for our needs. The new Click-Tight technology is ideal for moving the seat to a different vehicle if needed. Awesome product, highly recommended!!

I have had the seat for 9 months now. I bought it for my second son who had just turned 3 and who had been rear facing up until that point. I wanted a seat that would hopefully be the last one he would need. I can't complain about anything. I have always used the seat belt in my vehicles because I could never get a tight fit with the lower anchors. But I would usually have to climb on top of the seats to get a tight fit. With the click tight its just unbelieveably easy to install, that alone for me is worth the price. Now I don't have to go behind my husband to double check the install. :) The safety features are all bonuses.

Like product easy for my 5 year old to buckle her self in and out

I purchased this carseat for my 7 year old daugher. She is on the small side and had recently grown out of her boulevard. I had been researching different seats as I really wanted to keep her in a harness but knowing that many people have their children in boosters by this age. I love this seat. It is very comfortable for her, and she has tons of room to grow. I am comfortable knowing she is still harnessed. The install was absolutely amazing and is as easy as other reviewers say it is. I would love to buy more of these for other vehicles and for my younger 4 year old son. My plan is to keep her in this for a year or two and then move my son into it and buy her a true booster. Worth the cost!!

Worth every penny! Well built, installation takes much less time than with our old seat and it doesn't shift at all. Our daughter loves how comfortable it is, too.

we have the Frontier 85 for my son and it was time to get a booster for our daughter. Knowing it had to be a Britax I simply went for a Frontier and picked out a seat cover color she would like. Honest, I didn't read reviews. Had I done so I would have read that the seat had been redesigned and has a much heavier frame. In fact, It's all I can do to lift this seat to carry it anywhere! When it came to installing it, being an old hat at this stuff, I was floored with the way this one installed! After getting it all latched in when I went to test the amount of movement it still had, I moved the whole van! Yup, this baby, when installed correctly, is in to stay! It makes me want to buy this model for my son. Great job, Britax!

We were hit on passenger side by a car going in excess of 40 miles an hour. My six year old son was buckled into this booster seat with a 5 point harness and it performed like no other. My husband was driving and my son and I were both on passenger side upon impact. So scary to see a car getting ready to hit you and worry about your child's safety. We will be purchasing the same seat today to replace the one in the accident as all air bags were deployed and our SUV was totaled. My son waled away from the accident with a sore shoulder but today is back to being my precious son. We never sacrifice safety and I am glad Britax doesn't either. thank you!

I bought this carseat 6 months ago for transporting my 3 yr old grandchildren who are similar in size but different as can be in personalities. They can get in by themselves and never object to being fastened. Easy to adjust for summer vs winter clothing. Fall asleep in comfort or see out the window eagerly. They and I love the water bottle/snack holder. It was important to get red color for grandson.

We bought this for the safety, but mostly for the ClickTight technology. We have 3 vehicles that we drive regularly and two of those do not have LATCH so we wanted something that was easy to swap around. Also we have had to use our car seat in the grandparents' vehicles. This is so easy to install and it gets a better installation than we have ever gotten with any car seat using the seat belt. It's even better than the LATCH installations. And we've had our installations checked by Car Seat Safety Technicians and gotten approved on our installations. I can't even imagine using the LATCH with this booster. I am in love with the ClickTight. And it's so quick!!! This is the best invention for car seats yet in my opinion. My daughter absolutely adores this seat. She loves the double cup holders. She says the seat is comfortable and we do travel a good bit for some lengthy distances. She has just been potty trained and recently had an accident in the seat. While not the easiest to clean up (the urine leaked down into the LATCH buckles under the seat) it wasn't horrible either. The covers are fairly easy to remove and hand washable. I have a front loader washer with the hand wash cycle and used it without any problems. And everything went back together like it had never been apart. I haven't had any problems with any of the seat functions. Once you figure out how it all works there are no issues with the seat. As usual READ THE MANUAL people it's not rocket science.

My husband is a car seat tech and I used to ALWAYS have him install the car seats when they needed to be moved. I am extremely comfortable with installing this car seat for our 3 year old. Although the weight is up there, it brings be comfort that she is protected and the seat is stable.

I received it in the mail today, seems to be solid.

I am an extreme carseat lovin momma! The fact that I can still have my 50lb, 8 year old in a 5-point harness, makes me extremely happy! We do a LOT of interstate traveling back and forth from IN to FL and I absolutely do not want him in a seat belt that is hitting him at his neck. He is comfortable in this seat and he loves the cup holder. Thank you Britax for keeping my "baby" as safe as possible. His brother is in your Marathon. We are a Britax family!

I bought this product a month ago and I can't be more pleased! I love knowing that my kids are safe with all the crazy drivers on the road. The features are fantastic. I love the new click tight system (although it did take me reading the manual to figure it out). One note I want to mention is that It is on the heavy side for a booster car seat. I was a little surprised it was 25 pounds, however it does not change my mind on purchasing it. Also, super luxurious for a car seat. My daughter loves the comfort foam. I am so glad I purchased this!

This is my 3rd Britax but 1st Frontier 90. I love this seat. Easy install with click tight feature or latch system im used to. Great value for as long as child can use it. I feel that my 3 yo is very safe & he likes his big boy car seat.

I have purchased two for other grandkids so got one more

I love this seat. It has allowed me to keep my super tall daughter in a five point harness. It is also so easy to use. I open the compartment where the seat belt runs and vacuum the crumbs out regularly. I love that because I am a stickler for a clean car seat. I have also dealt with customer service, and they are fast and courteous. I am one happy mommy with one happy daughter.

This is the fourth Britax brand car seat we have purchased. All of the others have been convertibles. They are obviously well made, and I love knowing that in the event we are in an accident my babies are as protected as they can be.

This product is a car seat and a booster all-in-one. I'm very impressed with the click tight system. So easy to assemble and has a very nice and washable material.

Bought as a gift this month for our grandson and it was easy for seniors to install.

The harness is a great safety feature for a booster seat. My grandson likes the cup holders.

Past experience, reviews and safety features made this product my choice for my grandson.

I bought a month ago and am still figuring out how to use it

I'm impressed with the features and it contributes a lot to the ease of use especially with installing/removing the seat to another vehicle. With the click tight feature, you will have confidence that it is secure because it becomes rock solid -- the seat is immovable. And one more thing; We asked our daughter how she likes her new car seat? And she said she is more comfortable and the harness/chest clip doesn't hurt her. She also mentioned she likes the two cup holders. All smiles from her! This car seat is highly recommendable. Thank you, Britax.

Glad to see a car seat company get it right for ease of use!

When I told my husband it was time to install a new seat, he balked thinking it would would be the usual process. It took less than two minutes to install this seat and the installation is perfectly tight, the first try. I love this seat. in addition to being easy to install it is so comfortable and fits both my kids - 4 and 6. I believe this technology can significantly impact car seat misuse too.

This is a great car seat! I love how easy it is to install with the click tight system. Easy to adjust and clean too! Highly recommended.

Fits well in small cars and safe. That is priority. The straps are hard to tighten and can be very frustrating while bent in sideways in the back seat of a car. Also, it is not the best car seat for sleeping because it is too upright.

This car seat is very easy to install once you figure it out. It takes a little more pressure to close the ClickTight than I expected, I have to put a little of my body weight into it until it clicks. Also, when trying to loosen the harness, I thought that the diagram in the instructions was indicating that I press the grey lever on the bottom of the carseat to release it, but that lever is actually to recline the seat, and the lever for the harness is underneath the cloth of the seat. After taking a little while to clarify how it's supposed to be installed, it was easy. Now I can install/remove the car seat with very little effort. So much easier than any other seat that I've used.

This seems to be a good quality product. It has a nice amount of padding in the bum area, and has very nice fabric. I like how thick the straps are, they are not as easy to twist as some. I like the Hugs pads and comfort pads, and the crotch pad is very handy. The click tight was easy to use, and the harness was easy to adjust. One think I don't like is how flimsy the headrest seems, especially once it is raisied all the way. The seat is also very wide, which may or may not be a problem, hence, I rated it with 4 rather than 5 stars.

My daughter has been in this car seat for about 2 months now and we still have no complaints. She says it is very comfortable and she can sleep very well in this seat so that says a lot. My only complaint is that the straps are a little stiff to tighten but they will probably loosen over time, otherwise it is a great seat. I feel that my daughter is safe in this seat and she seems very happy with it. Happy 3 yr. old..happy momma!

I am so happy that I purchased and installed this carseat. It is easy to place and gives me the comfort/peace of mind that my precious girl is safe and secure in the event of an emergency. She is excited to use it, and when fitting her, having her sit in the seat on the floor, first thing she said is, "ooh it's comfy!".

Love these car seats, upgraded to all boosters for both kids. Would have given 5 stars but due to the bulk and weight I only gave 4. At this point in the year 2014 I would think they would get slightly lighter in weight if needed to switch from cars, also if needed to take on a trip to the airport, it would not be happening. Way too heavy but overall great product. Love the click tight, great feature.

Just bought this about a week ago and my son loves this seat. Very easy to install.

I bought this for someone, to use in their car, and felt comfort was as important as safety because of how much he would be in the car at times. I have to say, he jumps right up in it, without hesitation and seems very content riding!

The Clicktight Installation with the seat belt makes this car seat well worth the money. It makes it so super easy to install. It can literally be installed safe and tight in less than 2 minutes.

I am so happy with the new improved seat belt install. The new click tight install makes installing this seat a breeze. I also like the top tether harness will alert me if the seat needs to be replaced in an accident.

I've already had 2 of these and then bought another 2 for our other car. I can't say enough good things about the click-tight system. It's easy to use and makes me feel confident my seat is in tightly EVERY time I install it. It was easy for me to teach my daycare provider how to use it too, so I feel good knowing others can easily install it safely. I also appreciate how easy it is to change the height of the straps/head rest. On another note, my boys say they're really comfortable, they like the drink holders.

I bought it a couple months ago for my grandson because of the high marks it received.

So easy to attach to vehicle with seatbelt. Quality is superb. Easy to take of and wash. Graco carseats are complicated to detach and wash. Got 2 of them, one for my wife and I.

Easy install, great safety features. very comfortable.

This is the second time I have purchased the Frontier model. My son has the 85 model. But this newer model is so great!! So many improvements have been made. It was SUPER easy to install! I LOVE the click tight installation!! So great! I would definitely recommend it to anyone and would buy again for another child!

This is our 3rd Britax car seat and it is just as expected. Our 3 yr old has been in the marathon for the last two years and we have loved the quality and how easy it is to install. The only reason we upgraded him was because our 18 month old has outgrown his infant car seat (B-Safe). The Frontier 90 feel very solid. It was so easy to install and once getting it installed with the latch system and top strap the car seat doesn't move at all. Our son loves being able to climb in himself and having his own cup holders.

Just installed this in our Tacoma. Pretty easy, compared to others. Our son said "I have a place for my arms!" Now we have Britax seats in both our cars.

I purchased this seat after my frontier85 was damaged. I loved the 85 and hated to see that I couldn't order the replacement. So I bought the Frontier90. Easiest carseat that I have! Installment felt almost TOO easy! Seat is solid and will be able to be used over several years and kids.