I bought this seat when my daughter was born.  She's now 3.5 years old and we still use it every day.  Britax has been great with any questions or replacement/recalled parts, and we just bought a second Marathon for our next child.  When I compare this seat with some of the others out there, I wouldn't hesitate at all before spending the money on the Marathon. It's truly a great, safe car… read full review »