1. Sizing... PERFECT (I use this for commuting to work..fits smaller laptop and random odds and ends)
2. Colors...True to form :D Not too bright and not too dull
3. Pockets...LOTS of em...only qualm is that there are ZERO pockets on the outside (I'd like at least one for quick access)
4. Rainproof! First day I used the bag was in a rainstorm and everything inside stayed DRY!