With the stand, everything is very stable and the screen can be placed vertically or horizontally without any problems. Pay attention at most when mounting: follow the instructions exactly!

I agree that the stand is tiptop and handles activities well.
Also, the screen can actually be rotated from vertical to horizontal without any problems.

My experience is that the stand is of good quality and stable. The screen cannot be placed vertically, but it doesn't have to be, as the monitor is very easy to read even in this position.