This booster is very well made and most importantly SAFE. I love that it is a booster but still has side protection. My recently turned four year old fits nicely in it - the chair will also provide comfort for sleeping on longer trips with his head resting against the sides. Like the cup holders on either side and that it will fit snugly against the back of the car seat in several positions. High quality - not like other car seats I have encountered that seem cheaply made. My son moved from Britax Marathon to this one. My only complaint is that the suede material that part of the seat is made from seems to attract dirt/lint - but can be removed to be cleaned. I love the seat - so happy with this purchase after looking hard for the perfect booster.