I've been using this pack for about 6 months and you can't beat this pack if you're looking for a pack to tackle most everything. I've used mine for climbing, world travel and light overnight hiking trips. The s zipper, which you won't find on any other pack, is insanely useful no matter what you're doing. You can access any part of that bag in no time. I have heard a few people say the shoulder straps are squeaky but I think that's only on first generation models and they have since changed the straps. I didn't even realize this when I ordered mine but it also has a rainfly included and full set of compression/tool straps that tuck away.
In my opinion, you can find other packs that are similar in volume and a bit lighter but nothing matches the comfort, usefulness and quality of this bag...Not even close...At least nothing I've found!