OLEDs have amazing blacks and great contrast, but they truly struggle to get bright. That still isn't solved, at least to my satisfaction. They can get bright briefly or in small areas of the screen, but tend to crunch the brightness a lot otherwise.
Yeah I do pull the curtains down to watch tv during the day. Don’t care too much since I rarely have time when the sun’s up. At night it’s absolutely stunning when the content's right.