My son started the booster seat about 6 months ago, he is 4 years old and I feel that this product was perfect for him. I loved how it adjusted so easily as he was growing. On the back of it, it lets you adjust the height of it and its very simple to do. It doesnt require a rocket scientist to do, like some that I have bought in the past. I like how it has cup holders on both sides, so that he can have a drink in there for long drives and one of the other kids can too. I found that the fabric was easy to remove, so that I can wash it, which was very convenient, because the old one I had, was very difficult to take off. It was so easy to use that he was able to buckle on his own, but of course I made sure it was secure. The only downside I found was that it is more expensive than a lot of other ones I was looking at, but it looked safer than the others and more durable. Safety is very important to me and this product was a match for me.