I had this pack loaded with 70+ lbs. for every step of the AT in 2009. I loved it. It was incredibly comfortable and easy to carry. I did have trouble with the side pocket zippers blowing-out early on, but that was an easy fix. That season, just about everyone with a Gregory pack had hip belt failures and I was no different. I replaced my hip belt at Damascus with an older model which took me almost all of the rest of the way to Katahdin. After 1800 miles, a couple of the seams near the top of the pack began to fail, but then again I was hauling 70 lbs. everyday. All in all, a great pack with some easy/cheap fixes. I just can't bring myself to have mine replaced yet.