Britax Marathon Booster Car Seat - Onyx

Pros: High harness weight, installs easily
Cons: cost

 ~Intended Use~ Rear Facing: 5-35 pounds and 49" or less with a sitting height (butt to shoulder) of 10.5"-16" Forward Facing: Must be AT LEAST one year old (best not to turn them around until they reach the limits for rear facing ...

Pros: Ease of use, safety, comfort
Cons: Price, size

I am infatuated with my son’s Britax car seat.  When I worked at Babies R Us (about 6 years ago) I learned just about everything I could learn about car seats, how they’re made, how seat A stacks up against seat B and the ratings and ...

Pros: Safe& Sturdy, Easy to install
Cons: Bulky

On baby # 2 I probably would have kept using the same middle of the road brands that we had used with baby #1, but my son was born with brittle bone disease. So any Unnecessary jarring could cause him to break a bone or 5. So I started to look into what ...

Pros: Very comfortable seat for tall babies/infants
Removable cover, padding can all be washed
Cons: Expensive
Big- takes up lots of space.
Must have top tether anchor for FF- not avail always

Bought this seat with 20% off coupon at BRU to help defray exorbitant cost. We are really glad we spent the money. Our tall infant son is very comfortable. The summer heat in NC will cause everyone to sweat, and this seat ...

Pros: Stable, Safe & Can stay in until 65 pounds
Cons: Smaller base tears up your seats & narrow in seat for bigger kids

We own 2 of the Marathons and 2 of the Regents! We moved our 4 year old into the Regent when baby came. The Regent is a little better for the bigger kids but you certainly don't have to change. We just chose to move her. **Note Use a pad under the ...

Pros: durable, washable removable cover, high quality, much more!!
Cons: none!

This is my second car seat, I had recieved a graco car seat as ashower gift and it was junk! I purchased the Britax after doing tons and tons of research on diffent brands. The Marathon fits perfect in my scion xb, it is a good size car seat and with ...

Pros: long lasting, easy to install, quality product
Cons: expensive

I purchased this car seat for my daughter when she outgrew her Graco Snugride infant carrier in 2004. She outgrew that seat around 4 months! She has been in the Britax Marathon since and is now 4 years old. She weighs about 50lbs and still fits very ...

Pros: easy to install, very solid car seat
Cons: expensive

I purchased mine when my older son outgrew his "bucket car seat" I read quite a bit and talked to many friends. The most common statement was "it is a really good car seat, but you will pay for that fact" That statement couldn't be more accurate. I ...

Pros: Safest rated car seat and easy to use!
Cons: A little pricey and the bottom of the harness sticks a bit.

We figured that of any item we bought for our children, this was the one where money would be no object when paying for safety. We researched many car seats before deciding upon the Britax Marathon. Consumer Reports ranked this the safest car seat the ...

Pros: Great all around seat
Cons: Cost

The Britax Marathon car seat is a great convertible car seat. It can hold an infant from 5lbs up to 33lbs in the rear facing position, and from 20lbs to 65lbs in the forward facing position. It is made to European safety standards, which are higher ...

Pros: The Britax car seat is a safe and comfortable seat.
Cons: The seat is a little bulky.

I love this car seat. My 8-month old and I were in a front-end car crash. I have never been more scared in my life. When I ran to check on my child, she was not even crying. The car seat had not moved and she was completely safe. She had been rear ...

Pros: Very safe, good up to 65 pounds, excellent value
Cons: Large bulky seat - especially when traveling

I bought this car seat for my daughter when she was just under a year old. She's now 5 years old and weighs 40 pounds and is 40" tall and she still fits in this seat. Last week we moved the harness to the highest level on the seat and my daughter fits ...

Pros: comfy! easy to install! safe!
Cons: big. expensive. heavy.

We bought this car seat nearly four years ago and LOVE IT! We originally purchased this seat because of a review in a thrifty mom magazine. It said to buy it because it was the safest seat: don't be intimidated by the price! (which I was!) If thrifty ...

Pros: SAFETY
Cons: FALSE ADVERTISING, FALSE CLAIMS OF CHILD'S WEIGHT

We own two Britax Marathons, one for our daughter and one for our son. I did my research when my daughter was born in 2003, and this was the best car seat. One of the pros to it was that it stated that it could hold a child up to 65 lbs. My daughter is tiny, in the lower percentiles in weight and height, very petite. She is just about 40 lbs now, and is having trouble fitting in the seat, the buckle is too tight in the crotch area. When I phoned Britax, they had no explanation, and no suggestions for getting any more use out of her seat. This has also happened to three other children in her playgroup. If you want the seat to be able to grow with your child past 40 lbs, DO NOT BUY THIS SEAT!! Otherwise it is a good seat for babies, and did make me feel safe.

Pros: Safety and washability.
Cons: Large base.

This carseat is totally worth the money. It has top safety ratings and is the easiest carseat to clean. The fabric portion can actually be removed and placed into the washing machine. Additionally, the carseat can be used from infancy to 65 pounds. Another great feature is the velcro on the sides of the straps and the sides of the carseat. Each time you take your child out you can velcro the straps to the side of the carseat so that the next time you place your child into the carseat you can immediatley buckle them in versus fishing for the straps behind them and around their arms.