I also am just posting to say that I love the Britax Marathon (goes up to 65 pounds). I have one for both my boys, 2 and 4 months. I bought it also from albee baby. Why I like it there, not only free shipping but no tax either!!! I went with Britax on the recommendation of a firefighter. Britax has much more safety features (more than required). It's the only one he uses. Also, note that car seats have expiration dates, so if you plan to buy a used one ask what that date is. It should be on the side of the car seat.