Many, too many BDM4065UC monitors suffer from "flashing" black and then, more than occasionally, starting back at 30Hz instead of 60Hz (dp 1.2 connection). Fixing that requires 1-2-3 monitor power cycles, and when the display is in a "bad mood" it can happen 3/4 times per hour.
Source: I own and use a BDM4065UC which I'm about to return, and I've been able to test another (previously owned) one, where the owner, who had a totally different setup from me (mbpro retina 2015 is my workstation, his own was a custom-built desktop with nvidia card); many other people on various forums complain about that, and Philips support seems to know about the issue perfectly.
I have been interested in BDM4350UC and/or BDM4037UC as well, but both have been reported to suffer from extreme ghosting/persistence; I'm now looking forward to buy an LG 43UD79-B.
What I agree is: a large monitor makes the difference. Not in the workflow per se, but in how much eye strain, headache, back pain (from slouching to get closer to the screen) and so on you get at the end of the day - which is almost inexistent with such large displays. Even if it's $700 for the LG, that's well spent money.