The article is basically very good. The installation is, however, no "10er wrench" an ordeal. The screw to the wall is in fact made not with conventional screws (Phillips). If you have at hand the tools, everything goes quite fast. Measuring, three drill holes, dranschrauben. Done. Vesa-mount is designed for two systems (small / large), on my little TV it worked perfectly. Depends once the whole thing, it's very solid. Even too much. Because if you are planning to move the equipment often / turn, you will be disappointed in one respect. It's a little stiff and tilting in the vertical does not go - because you have unfortunately screw tight.
But - that's all whining at a high level, perhaps because for the price it is very good. Therefore, the tendency to 5 stars. It would be nice also been a kind of "cable management", a clip or something like that. But one must not expect for the price as I have said.