I checked for LED PWM Dimming using the testing methodology from this article at the minimum, maximum and calibrated brightness. Read about the side effects of LED PWM Dimming here. Unfortunately the Monex monitor engineers decided it was ok to let Samsung equip the PLS panel with an insultingly low 175hz LED PWM Dimming frequency. I often observed mild flickering and the low frequency made the moving UFO's from the TEST UFO Ghosting Test appear slightly jittery as well as obviously blurrier when compared to a PWM free display. Users sensitive to LED PWM Dimming will likely see obvious flicker and may also suffer from head aches and/or eyestrain.
Users who are not bothered by LED PWM Dimming may still see LED PWM Flicker since the dimming frequency is so low. Such a low frequency is insulting and unacceptable regardless of whether or not one is sensitive to it since many of the similarly priced 2560x1440 Korean monitors do not use LED PWM Dimming.
Maybe it's me, but I want to say your technical writing has improved since your earlier reviews. Enjoyed the read but my interest in this display ended there.