Quick potato review of HTC Vive Flow after 3 days of use. Verdict is DON'T buy, but watch if your wallet itches and you want to find all the reasons why not to buy it.
Summary:
Very light and comfortable
Magnetic fabric shade, no light leak
Diopter adjustment down to -6 (probably doesn't work with plus diopter or if you have cylinder)
No IPD adjustment and even for someone with IPD of 64 is straining eyes
No battery (use adapter or battery pack)
No controllers or hand tracking
Android Phone has to be used to control, but only rotation of the pointer (3DoF)
FOV similar to other headsets
Resolution decent
No god-rays (not fresnel) but has some glow
No black - black is very light
Tracking very bad - lags half a second making me sick
Spatial/rotational tracking lags worse than anything else I have used (and I have used almost all VR/AR headsets and have many at work) - unusable
No YouTube app
Only Viveport store
Can't connect to PC to play SteamVR games
No Virtual Desktop app or wireless connection to PC
You are supposed to stream YT from phone but you need phone with Miracast (couldn't test)
Can't play Netflix because my phone doesn't support the specific DRM (even if it had Miracast)
Games show screen tearing and low framerate
Can't play mp4 SBS videos that I copied from the computer (H264 and 2880p)
I wanted to like it, but I am really disappointed. If they fix the rotation/motion tracking lag and let me play mp4 videos from built-in storage I might have SOME use for it, otherwise this is the last time I was using it