I was getting the "Your environment is darker than we’d recommend. Adjusting your lighting or moving to a brighter play space can help improve your experience" message so joined beta and have the 1.5 update. Unfortunately it seems that it is still giving me this message.
I have tried room setup again - practically impossible to do since the progress would go back to zero. After finally doing so it has set the room to be on an incline!
I have an oculus quest - it tracks fine in the same conditions.
Not impressed so far.