My family room has a 16' wide floor-to-ceiling window so I do get a fair amount of light in my TV room, fortunately it is North facing so no direct light.
The UST Projector has slight fading a couple of hours in the day but the picture quality in the evening and for much of the day is superb and as good if not better than my old 4k TV. I did buy an ambient light rejecting screen but it is still a little bit affected by bright light.
It's had to photo both day & night but this is basically how it looks:
Daytime:
Evening:
Evening:
Ambient Light Source:
