I like the bag itself with the compartments, but I'm not crazy about where the top part of the shoulder straps are sewn into the bag...it doesn't lay on my shoulder very well at all because of this.  I usually put mine over just one shoulder, and normally a "book bag", such as the ones carried in school would have the top of the straps sewn in at the very top of the bag, so it would drape better on the shoulder and not want to slip off.  If it weren't for this one thing, I would think it's a really good backpack..I noticed also that the hand strap is pulling away from the very stop on one side and for this one reason, I try not carry it using the hand strap.  So...it's a little annoying the way I have to carry it...but it's a good backpack otherwise.