This is my 2nd Britax Marathon carseat. I love them! They are safe, and sturdy! I feel very comfortable having my children in the car in their Britax carseats.
View Marathon 70-G3 Convertible Car Seat
We upgraded my 2.5 year old son from the Britax Marathon to this Britax Frontier. Wow, I'm so impressed at how sturdy it is, and can just see how protected he is while sitting in it. I love the head protectors, the 5 point harness, and the overall quality of the seat. And knowing that this will be the last carseat/booster we'll have to purchase for him, makes it worth the extra bucks.
View Britax Frontier 85 Booster Car Seat
My son is very tall for his age. This was the only seat that could accommodate his growing height for more than a year. The seat was a little hard to get installed tightly but once in is fine. My son loves the cup holders. Well worth the cost.
View Britax Frontier 85 Booster Car Seat