The rubber butterflies that you use to close the zippers have almost broken after 3 months of use. I also had to repair the main zipper, it came off in the second month. Very impressive and comfortable bag, but it definitely won't last for a second school year.

As a construction is good. The wheels seem to be sturdy construction. It has three compartments. One large for books and two others for the rest. However, I think they could "steal" a little more space from the large one for the other two. They barely fit food and a change of clothes that is needed together. Also, the zippers are pulled by a rubber butterfly. Beautiful but in practice if you don't open the zipper carefully it's a matter of time for the butterfly to break. It goes without saying that the bag itself has weight due to the fact that it has all this system with the wheels.