Thank for review and after reading it I am even more looking forward to buying this headset. I do have a few points I disagree with:
"No Flip Visor... HP deleted one of the best features from its first Windows MR headset... You can flip it up slightly, but not enough to clear the proximity sensor that tells the MR Portal to give you mouse and keyboard access on the desktop."
I disagree as this was the first thing that breaks for many people, to they just made more durable headset. In addition it did not work as expected. As a VR apps developer, it should have helped me be able to flip the visor up and see my monitor, but no, I still have to lift my head 45 degrees to see the screen, so even though it is easier than removing the headset completely, unless I have to change just a small thing, it puts too much strain on my neck. With Flashlight features, I can still find my coffee cup without removing the visor.
Proximity sensor capturing cursor was also badly implemented, that at the end I placed piece of masking tape on the sensor so the headset would not constantly turn on, or hijack my mouse/keyboard. This way I can manually switch with win+y to the input mode I need.