I've had them for a year and since the 6th month the mute button has broken. They connect via both Bluetooth and a receiver, which is good, but there are the following problems: with the Bluetooth connection, the sound is terrible, and if you lose the receiver to get another one, it costs 50 euros. The build quality is relatively good and they are comfortable for many hours.
The SteelSeries software is another story and the biggest problem. It categorizes applications into different categories (media, gaming, chat), and from Windows, you choose to listen to one of them. So every time I have to put all the applications into one category through the software to hear everything from the headphones. In the end, I deleted it, and this is mainly the reason why I wouldn't buy SteelSeries headphones again.