The Close box in the Tools dialog box doesn’t work.
The tilt adjustment in the Settings dialog is slow to respond. My guess is that you’re sending the value and waiting for the updated value before updating the UI. The mouse clicks get buffered, and I overshoot and then have to correct.
The tilt angle is not editable.
The tilt buttons are tiny and hard to hit in Desktop mode in SteamVR.
When I run an application, my mouse cursor on the screen is locked into a little box so I can’t click on anything. I can open the task manager (and regain control of the mouse) and then SteamVR. After that, my mouse behaves normally.