I got my Reverb G2 back before Christmas. Word of warning, if you go that route, and you have certain motherboard setups, your USB-C connection will NOT work. I've dealt with HP support since I got the headset, they claim it's something to do with the chipsets, I have an MSI x470 gaming carbon mobo but the problem is pretty widespread across multiple mobo's. HP said a certain USB dongle was needed and that they'd send it right out. I ended up getting backorder notifications every 3 days up until early this week, when I decided to research this part. Turns out, it's just the HP Elite USB hub, readily available on Amazon. I sent HP support a pretty scathing email and made some veiled threats like a basement dweller, and magically, they found me my USB hub and overnighted it. Finally got my G2 running yesterday. It's nice, although I got it just to increase resolution specifically in DCS, as I couldn't read any of the cockpit gauges or displays, other games played fine with the Rift S I started with. Also, integrating the native WMR software with SteamVR was challenging, but I got it done after about an hour of fiddling.
That said, I have a Rift S I'll be selling pretty cheap! lol