Alexandra has been using her Britax car seat for 7 years . It is very comfortable and still fit her very well. Medicaid covered the cost . A link for information at http://www.showeryourbaby.com/brtrplspneca.html
She love to go on a car ride, it calm her Rett related breathing problem, she can watch the surrounding by the window and enjoy a passive ride.
Two minutes later she is falling asleep. The belt is actually not secure properly, the middle point should be higher, we just didn't put it well. I had to put a box, one of this basket from Pier 1 that I turned upside down. It allowed her feet to be touching something. I think this chair is very good. Have a great day.