This has to be one of the worst 4k monitor lineup iv ever seen. i'v previously bought the 32" which had the worst picture and looked like a poorly upscaled 1080p even though the monitor is 4k. I then recently bought this 28' version hoping it would be better but i could't be more wrong, the picture again looks like a poorly upscaled 1080p and even with the brightness at 100% the screen is very dim and slightly blurry.
Overall i would NOT recommend samsung monitors. You're better off paying an extra $50-$100 for a decent monitor.