I read some reviews that the zipper and wheels didn't last long on this backpack. My kids are pretty rough on theirs and so far the zipper and wheels have hels up great (knock on wood!) My son loves the camo print.
Update: So... the zippers broke! I guess it did not hold up as well as I had thought it would. Bummer. Wheels are still fine, but overall if the zippers are broke, it doesn't do us much good.