Have used it just a few times. Slight issue adjusting straps, but well worth the purchase. Considered the multifit 3-in-1, but wanted more structure and stability, as well as longer time in the forward facing position before the booster. VERY pleased with decision and will be getting another by winter when our 2nd is ready/big enough for the seat. While it says infants as small as 5# are acceptable, I'd just rather use the car seat we originally had for our first (a year ago) until we're ready for another Grow and Go. Just not convinced this seat is OK for a child under 10 or 15 pounds. But aside from that, VERY thrilled with seat and WILL be investing in another. Recommending to all future parents!