A certain amount of variation in brightness/saturation due to viewing angle issues with TN type panels is to be expected, but this is usually expressed as slight brightness differences in the top and bottom of the screen, not the variety of problems you describe.
Even slight viewing angle changes can create noticeable differences in picture quality. My chair reclines so every time I lean back the picture starts to darken. Titan Quest looks absolutely terrible on this monitor at stock settings. Even if the settings are adjusted, the picture quality still varies too much from viewing angle changes. There appears to be no 'middle ground' where viewing angles within a certain angle all look the same. Basically low angles are dark, high angles are light and everything in between is a gradual progress from one extreme to the other.
For the money, a terrible monitor. I'm sure the 2ms is a marketing gimmick as well.
Rob