Review on Dell S2817Q 4K HD LCD Monitor - High-Resolution Display (3840x2160p) - FBA_S2817Q by Dan Kegg

Amazing, works great since I bought it. I had some problems at first, but they were false positives. One of them was the screen flickering (this was caused by software issues with the program installed on the monitor, just uninstall and that's it). Then the speaker was quiet too, but that was fixed by setting the speaker to 100%. The monitor is excellent.