"My experience with the durability has been very good."
+1 over 3 years of use, on trail and off.
"I know Chris Wallace(??) (BPL Staffer) has said they compression system eyelets can fail over time."
I've had one top eyelet pop off, but it hasn't really affected my ability to compress the load, partly because I very rarely completely fill the main compartment of the pack.
"I personally love the compression system, love the large side pockets, find the shoulder straps awesome and I am happy using this pack to 35 lbs (and I've started trips at 40-45 lbs). I wish the rear pocket stretchy mesh was a bit more durable but that's it. Great pack."
Ahain, +1 to all of the above, only up to 30#. Gettin' old, I guess. A truly great little pack, IME. The only minor issue I have had is that the short hipbelt wings can be uncomfortable up over 25# as the day wears on, requiring a bit of fussing to get them right, but that could be due to my bony hips. One further minor gripe is that the hipbelt pockets are frustratingly small, but not sure they could be much bigger given the stubby hipbelt wings. Call it a design limitation, I guess.