Color, sharpness good black level, Blickwinkelabhängikeit moderately

The whole discussion on color settings in the reviews I like that, because how can you optimally adjust the monitor for all users and deliver so. That's impossible.
So there are good instructions to the monitor to calibrate.

With colors and sharpness, I am satisfied, but the black level and the viewing-angle dependence are weak.
I look at the monitor, the colors change from the front visible from top to bottom.
I have no comparison to other monitors of this size, but that should be mentioned.
Therefore, you can also reach the beautiful Black no value, top it is always dark (black) as below (dark gray)