>>304557472
The headset is basically an Index with a higher res display and WMR tracking. The lower refresh rate compared to an Index won't bother you if you haven't had higher, and the resolution might be worth the trade off if you have. Headset tracking was fine on gen 1 WMR, so no real issues there.
Controller tracking should be fine outside of a few edge cases too, since the biggest problem with the first gen headsets was camera coverage and this fixes that.
The controllers look fine. Should function like Oculus touches minus the capsense which is mostly for cosmetic stuff. As long as the ergonomics are fine, the only major issue I can see is gesture mapping for VRChat.

The only thing I'd honestly be worried about are the controllers, everything else should be solid. It looks like a nice middle ground between an Oculus headset and an Index [spoiler]with some advantages over that too[/spoiler]. I think a lot of people will still go with an Oculus headset since it's the cheapest option, but there's no reason to think it'll have a horrible launch.