Gregster how do you rate this monitor for gaming over your 120Hz ASUS?
There is something awesome about gaming on a 120hz (or more) monitor. I would, without question, bin the Dell IPS over the Asus. I found the caveats on the IPS irritating and kinda spoilt what is a fantastic screen. As for the Asus 120hz over the Samsung 4K, I wouldn't swap the 4K. The IQ is so much better and everything just looks so much clearer. I feel at times that people make too much of TN Vs IPS and have maybe had a bad TN panel but the viewing angle is superb and the gaming experience is top notch. I have not noticed any tearing or input lag like I did with the IPS and everything just feels so much smoother.
Out the box it is very bright but after some tweaking, I have it just how I like it. Of course that is personal preference as well and we all like different things.
In short. I am loving this 4K Sammy and will be sticking with it. I cheat though, as I also have the Asus right next to it for 3D gaming