I'm not Brett... but since he has so shamelessly hijacked a Houdini thread to peddle a travel pack (!), I'll add my two cents...
The pack looks great for day hikes! But if you plan to use this for your travels -- when you may access the pack multiple times a day, then having to buckle/unbuckle/adjust three straps plus an internal cord and cord lock every time can be a chore. I suppose three straps will help scrunch down the pack more effectively than one, but I don't think one needs so many adjustments for a pack that's pretty small to begin with.
For travel use, I like my day pack to be both light and simple -- I access mine frequently in the course of a day... taking out or putting back a guidebook or jacket, putting in small souvenirs collected during the day, etc. Thanks also to Brett, I got a MontBell Versalite 20:
It's simpler, and I like the large bottom exterior pocket which occupies the entire lower third of the pack, with one opening on each side (all connected).
The address below leads to my review write up as well as a link to BPL's spotlight review of this pack.