My grandmother had purchased this for us for our son. Our son is now three years old and we will be using this for our daughter, when she gets big enough for a booster. So it has withstood the durability test! My favorite thing about this seat is that you can take it anywhere with you! When you go to visit relatives or out to eat, if there is an adult chair you can make this work! We have used this seat literally everywhere! I prefer this booster seat rather than the booster seats and high chairs that they have at the restaurants for you. It secures underneath the chair with a strap as well as around the back of the chair with the strap. And there is no wiggling the seat out of place, even the slightest, we've tried! So you know your child is safe when you put them in the seat. I also love that the tray comes with two different pieces. Sturdiness VERY sturdy, once you strap it into a chair it is not going anywhere. Durability VERY good durability since we are now using the same seat for our second child. Safety Double strap to the seat and baby strapped in the seat as well. Super safe seat! Ease of Cleaning Very easy to clean.