After years of enjoying the Gen 1 Arctis Nova 7, I had to buy a Gen 2. The quality is a step down, but the comfort is an improvement.
Sonar is an option to enhance your immersion while gaming. It's the built-in version of 7.1 surround sound. A fantastic piece of software.
The biggest drawback is that for this price, you'd expect a better microphone. It's truly awful. If you don't have a standalone microphone, avoid this device. You're not doing your friends any favors.
The worst part is a high-pitched squeal in the right earcup. I don't know exactly what's causing it. Sometimes it goes away on its own, sometimes I have to turn on Bluetooth and it goes away temporarily. Other times, it comes back. Whether I use the headphones wirelessly or wired, this high-pitched squeal keeps recurring. If you don't have music playing, it's very noticeable and incredibly annoying. After Googling, it turns out this is a problem everywhere. It's a device-specific issue.
I would never buy these headphones again just for the high-pitched sound. Unfortunately, I threw the packaging away the same day, and now I'm stuck with them.