While the accessories are very thorough, the build quality doesn't quite live up to the same bar from what I can tell. The locking mechanism for fit adjustment seems to be susceptible to manufacturing variations; the right cup seems to want to retract on its own randomly. It happens consistently, so I assume the spring that is inside the headband is loose or something to this effect.
I had this exact same problem with the left side of my headphones. Its a small defect, but can be majorly annoying. The headband extension would shorten/retract by itself every time you tried to put the headphones on, which meant re-adjustment every single time you put it on your head. This was a bit too much for me, so I went back to the store and they were nice enough to exchange another pair for me. I thought I got really unlucky, but perhaps this problem may be more common than i thought..?
On my second pair the rotating mechanism on the right side doesn't feel as tight as the one on the left. This doesn't give me any problems, but I think we should expect better fit and finish for a $300 pair of headphones.
My advice to anyone getting these headphones is to check the locking mechanism for the headband adjustment when you buy these, and make sure that they stay in place. (this is if you buy at a brick-and-mortar store).
Edited by Jien23 - 12/2/13 at 2:47am