I have the ku7000 model which I believe is same panel, maybe slightly different smart features. In PC mode, using custom 21:9 res (3840x1620), which is about 25% less pixels than 4k, therefore easier to run games. Looks great since its 1:1 scaling. Plus more convenient for PC usage since it lowers the viewing height a little (black bars). I find the viewing height of full 4k too high on a 40" screen, esp for PC usage. Aside from the 21:9 custom res which lowers the viewing height a little, took off the stand and wall mounted it to where its suspended just 2cm above desktop. That of course lowered the viewing height quite a bit more. Now feel its ideal for PC usage, movies/gaming.