I have a pair of the QC-35 at work, where there’s a lot of background noise. They’re great, though when some of my less considerate colleagues are being particularly noisy and I need to concentrate, i have been known to wear earplugs underneath as well. I’m trying to make the QC-35s last as long as possible, so never take them anywhere else. I suspect most wear and tear would actually happen in transit rather than when they’re sitting over my ears or in their case in my drawer.
For me, there’s only one downside to the QC-35s, which is that they pick up a lot of background noise if I’m on a phone call, and make it harder for others to hear. Headphones with a less sensitive boom microphone, like the Jabra Ellite, do this better.
I have a slight issue with the QC-35s, which is that they occasionally seem to beep repeatedly, as if they were pairing and unpairing. However, I have a suspicion that this may be because I’ve previously paired them to three of my phones and an iPad, and they keep switching secondary device (on which I’m not listening to music).