I love this bag and have had it for about 7 months.  It wears well, is extremely light, has the great locking zippers and the padded slip pocket in the larger section that will hold my MacBook Pro.  Having the 2 side water bottle/umbrella holders is great. I've used it as my carryon rather than a purse when I fly weekly and plan to take it on a trip to Italy this fall.  My critique is that I'd love an outside small zipper pouch or even an open pouch for things like a boarding pass.  Also, due to its contoured shape, I find digging through my stuff in the top to get to other articles in the bottom a little challenging at times.  BUT I haven't found anything better yet.