Disagree entirely with Psycho.
I have an 65B6V and was concerned about the input lag before buying it, but having used it extensively with my Titan X SLI PC and Xbox One S (using a Wireless XBox One controller with both) that I cannot detect the input lag with 'Game' mode enabled and the image quality blows me away, particularly the brightness, colours and the blacks compared with my X34a 21:9 monitor.
I have played a few HDR games, Gears of War 4 and Forza Horizon 3 on Xbox One S and Shadow Warrior 2 on Steam and HDR works great. You definately notice the input lag with HDR games, and though they are still playable it's not as nice as the standard Game mode.
However, LG have already confirmed an Firmware update is on the way to add a Game mode for HDR and this is expected to reduce input lag in line with standard game mode (38ms)
https://twitter.com/LGUS/status/807670260216295424
mate could you comment on the readability of text as you say you have used this with your pc?
all the best!