The backpack straps are absolute garbage.
To start with, the length adjustment keeps sliding out of place, I often have to re-adjust them several times on my way to rehearsal.
But what's worse is, after carrying my semi hollow bass, along a few cords, back and forth to rehearsal twice, all four hooks that are used to attach the straps to the bag had been bent out of shape. This has resulted in the locking mechanism sliding out of place. Thankfully it doesn't come off while on my back (yet..), but whenever I put it down they tend to detach.
On top of that, the strap of velcro at top that is supposed to keep them in place keeps ripping off.
As for the rest of it, so far it hasn't given me any problems. Lots of storage space, thoroughly padded. An extra handle at the base of the neck would have been nice, and it's a bit on the heavy side (though that's to be expected). No other part of it has started to show wear, but then again, I've only owned it for about a month, and based on the experience thus far I'm keeping my expectations low.