What a pleasure!
After upgrading my old EV2780, the quality of the Japanese manufacture is still there. The components do not make any noise.
The picture is ultra-stable and the difference in readability between 2560 x 1440 and 3840 x 2160 is huge.
The stand adjustment is very comfortable and allows you to reach down to the base (which was not the case with the EV2780).
Also no DisplayPort bug on OSX (10.14.6) with a Radeon RX580 in eGPU to report.
For me, it is an essential investment for all those who spend more than 4 hours a day in front of their screen.