This rolling backpack is great - the wheels slide smoothly and fees solid. There are several compartments for school supplies, laptop, etc to help organize. The pull bar has 3 notches for height - again it's solid, not flimsy. It's attractive and my child is asked often where it was purchased. The only reason I have not given this backpack a 5 star rating is that the water bottle holders on the side do not come up far enough and need to expand a bit more. For longer thinner water bottles, they sometimes fall out. If the backpack is full, the material on the side does not allow for enough expansion to get a water bottle in the holder.