I bought the Aztec Hobo 80 in December 2007 and have used it on travels through Asia, the Middle East and North America since and it's showing no signs of wear yet. It's easily big enough to fit everything I need and has a few features that I've found to be very useful. For one, as other reviewers have mentioned, the detachable day bag is really handy for obvious reasons while travelling, and the shoulder strap (which you don't have to keep attached) adds another option if for whatever reason you don't want to put the bag on your back. Also, there is a cover that can be pulled out and zipped up to cover the shoulder straps for when you are flying -- check-in staff often ask me to hand the bag to another counter because of the straps, but covering them with the pull out cover has always satisfied their concerns. The fact that the bag opens like a suitcase rather than in a top-down way is also very useful for reorganising items while travelling. On the whole, I've found the bag to be extremely useful while travelling and definitely recommend it.