Actually, I am very satisfied. I was very concerned that the wall mount our TV can not wear heavy (35 kg). But that seems to be the case :-) I have very strong wall-screws and dowels used ("because you can hang off a horse") and the holder screwed exactly plumb. Nevertheless, (it hangs lower right) of the television wrong when I unplug it from the wall hanging. This is probably due to the strong distortion. This is also the reason why the television is also never perfectly straight vertically. This means it is up on the wall, while the lower edge of the wall.
Installation is very simple and explained otherwise detailed. and there will be many different screws for different TV models.