Is anyone using a 55"- 60" 4K Tv as monitor?

[pumaszi]

Hey there guys
Does anyone uses 55" or bigger 4K TV as monitor?

Planning to buy TV-monitor, and I do not know what size 49", 55" or 60"
I'm afraid that 55 may be too large as a monitor, although I like large displays (I also own projector)
Used for:
50% - PC
25% - PS4
25% - movies
DPI does not bother me because now I have 32" 1080p screen.
I'd like to buy Samsung 55KS8000 (UE55KS7000) or curved version.
What do you think ?
Thanks!

 

[pumaszi]

I have 970 GPU.(planning to change to 1080) I know that 4k TV are limited to 60Hz, but I mostly gaming on PS4.
What to choose: 55KU6400, 55KS7000 , 55"LG OLED B6 or some smaller tv?
Thanks.