I've had my Nari Ultimate headset for approximately a year now and use them daily for both work and personal listening. I spend approximately 4 hours per day (or more if I'm gaming) with these on my head, and my hair usually has a flat spot where they've been sitting to show for it.
The design is pretty durable. Big plus for someone as clumsy as me not to break them. I've gone through a lot of headsets, but these are holding up very well.
Unlike most headsets, I don't mind wearing these for long periods of time. I have big ears and the oversized earcups fit comfortably. My head doesn't sweat while wearing these either, which is a definite plus. The ear cups fit snugly against my head, blocking out most exterior sound, allowing me to get immersed in whatever I'm doing. It also prevents other people from hearing whatever I'm listening to - I can play Call of Duty in bed while my wife is trying to sleep without disturbing her.
The microphone is very sensitive and picks up lots of outside noises even with the Ambient Noise Reduction on. My wife was sanding my fireplace to paint and I was in another room approximately 30 feet away. My coworker heard the sandpaper sound. Normal sounds such as breathing and wind are dampered which is nice.
As I mentioned before, I use this headset when I game. I use the headset with the aux cord to connect to my Xbox Controller and it sounds great, but for some reason there is a slight echo from my microphone back to other players despite having headphones on. If you're an Xbox gamer and have an option, either pick up the Nari for Xbox One so it works wirelessly, or skip it and buy a more reasonably priced surround sound headset.
The battery life on these is pretty awesome, I can go 4-8 hours without needing to charge them, sometimes more. I played through Dead Space last night clocking just under 8 hours of playtime, and was still able to use them on a conference call for a couple hours this morning.
The one major flaw, and potentially a deal breaker for most, is in the wireless connection...there doesn't appear to be an option to replace the USB dongle (about an inch wide and long) if you lose or break the one that came with it. According to Razer's support site you can get another by going to their RazerCare website, but the page where it used to be was taken down and it's no longer listed as a product available for purchase. This is why I rated it 4 stars instead of 5.