Samsung 50" QN90a (this size has the IPS panel for better off-angle viewing - very necessary for viewing this close). I wish local dimming could be completely disabled as I usually use a black background and the blooming from the mouse pointer is horrible, and moving it across the screen really fast makes it almost disappear (even with local dimming set to low). With the colorful background it's not a problem.
You may wonder why it's right on my desktop so close to me, well, I'm legally blind so... yeah. lol It makes gaming really immersive though.
I'm coming from an old Asus 25" 1080p IPS panel with a claimed 8ms response time and this is better in every way it could be aside from the blooming. I'm getting quite a bit of "dirty screen" effect along the bottom (especially at the corners) but it's not really noticeable unless it's completely black or white.
I haven't had a chance to try VRR because the HDMI cable I have (a new one is on the way) won't let it happen.
The only thing I don't like is that it won't runn 4:4:4 at 10-bit, but maybe that's the cable? I doubt it, but I'll find out tomorrow. For now I'm running in RGB 8-bit with full dynamic range. Text looks really crisp so it doesn't bother me.
Anyway... woohoo... I'm pretty happy with it so far.
Also, that Sony 4k Blu-ray player: I wish people could remember what Blu-rays look like - streaming 4k doesn't even look as good as a regular Blu-ray, and doesn't even approach the same ballpark as a 4k HDR Blu-ray. They look absolutely spectacular even in the not-so-bright "Filmmaker" mode. It's really too bad because the selection of older movies in 4k is really limited because of the lack of interest.
(The thumbnail looks really blurry but if you click on it it's a lot clearer)