After a school year (1st grade) my bag had fallen apart..... the wheels were going in all directions and the bag had holes in three places... also the zippers required a lot of force to open/close in the end.....
Certainly a nice bag with good capacity but also very heavy..... I definitely wouldn't give 45 euros again, which is what I paid back then to get the same one.....
I think it would be better for someone to choose one with rubber at the bottom, especially for younger classes who don't take good care of them....... maybe they are more durable....