I have two 23" 1080p at work, and two 25" 1440p at home, there isn't a big difference in productivity, my home panels are a bit larger and crisper. I used to have a single 27 inch 1440p, which I do not recommend, it was too large and a bit clunky to work in a 3d software with it, it's way better, for me at least, to work…