I purchase this car seat/booster when my son turned 7. He is rather petite and he has special needs (so he hasn't quite figured out how to behave in a booster and still needs the 5 point harness). I chose this particular product because I knew it would continue to grow with him and at at almost 9 he is just now breaking the weight/height limit. It has a really sturdy design and I have all the faith in the world that it would keep him safe if we were to have an accident. The chest closure is very easy for me to buckle and unbuckle, but he has not figured it out. This seat has a really attractive design and I have received many compliments. The one con, it is pretty stinkin' heavy. At any rate, totally worth the cost and I would recommend to anyone!