After weeks of research my Mother and I decided on the Britax Marathon. My Mother sold car seats for years and knew just what to look for as far as safety and durability. I wanted something that would last as my daughter grew, make her comfortable on long rides, and looked good in my car. The Marathon meets everything on our checklist, plus some we didn’t think of. The car seat is quick and easy to installed yet sturdy and dependable once secure. My husband has strapped this car seat to the middle seat and side seats and it fits well in all places. The harness goes nicely over my daughter and snaps together without much effort. My daughter is able to move her arms and legs, while the harness still keeps her confined. The sides of the Britax Marathon come up around my daughter protecting her from all sides. The yellow with pink butterflies it is beautiful print, which wipes clean easily and is just as easy to take off and wash. I do wish the padding of the seat was a bit softer, yet my daughter seems very comfortable, even on 2 to 4 hour car rides. So far the Birtax Marathon as been a great car seat and it will last for a few years as my daughter continues grow.