The headset tracking for the Reverb is pretty good, it's mostly the controller tracking that has issues.

But the WindowsMR layer is a bit annoying. It's not too common but I've had a Windows update prevent it from working until I did a full uninstall/reinstall of the Windows Mixed Reality software, the Windows Mixed Reality for SteamVR software, and SteamVR. Also because it uses different controllers, sometimes (though very rarely) an app will not recognize the controllers or certain buttons on them.

Oculus and SteamVR are pretty far ahead of the pack - the Quest is the biggest market and SteamVR is the most open ecosystem, and the rest of the APIs get comparatively little (or imbalanced) real-world testing and improvement.

Reverb is cool but at the end of the day, despite some good Valve engineering, it's WMR, and HP doesn't seem super committed to VR anyways.