I’ve just got some of these, and I have to say I’m not impressed.
First of all, the ear-pads are really hard and small compared to the ones on my HS1s. I’ve worn the HS1s for hours at a time and they’re great, but the pads that came on the 2000s feel like they should be on a £10 headset.
Secondly, the wireless performance is pretty dire. It’s fine when I’m sitting at my PC and the dongle is less than 1 metre away, but just now I went to do the washing up and the sound was just constantly crackling and cutting in and out. I live in a small apartment, so I was less that 15ft away from the dongle, and nearly had line of sight through 2 doors.
Maybe I’m unlucky and have a dud pair, but they really do not live up to the quality of my other Corsair products.