The first disillusionment (does not flow in the product evaluation a) is that Amazon has apparently only 60 x 60 cm boxes, and thus the relatively manageable rack was delivered in a huge box - but it can indeed not the manufacturer.
Reading the product description you already surprised because here suddenly from a payload of 3kg per fastener is mentioned - which is already in stark contrast to the up to 80kg in the product text. Throughout the shelf weighs 1.6kg already makes afterwards 4,4 kg payload and since the manufacturer restricts same one that, depending on "lever and mounting" even less than 3kg / fastener are possible.
So I cleaned the wall / degreased and losgelegt: I should remove the protective films that did not exist in my attachment so - so I had to skip the point. Then you have the two brackets by means of an (already attached) double-sided adhesive fixed to the wall - which is not easy because of the construction, as must fix one actually 2 round bracket on the later the silver linings are plugged - but even that was to make.
Now can you screw an adapter on the tube with the special adhesive (silicone?), So you "back molding" the adhesive on the wall holder can. Unfortunately for me, the thread of the adapter has not ever fitted on the Tube. Fortunately, all of relatively soft plastic, so I could but then screw the adapter with some intentional jamming.
Now the adapter screws into the wall bracket: No surprise there: Again, the thread does not fit and you have to trick forever until you realize: The Spezialkleb is cured despite protective film and one must first etc with a nail clumping directly on the tube end removing (and may again 2x the adapter screw wrong).
However, the rest is relatively simple (apart from the fact that, of course, the thread of the adapter does not fit well at the 2nd mounting bracket) and pressing until the silicone leaking out of a small hole at the bottom of the bracket again. Finally removed a small plate, which opens 4 holes to allow the silicone to cure. After 48h you can screw on the shelf then.
In summary, I can say that it holds (for my purposes) and actually does not look bad at all, even if the glass plate (which is strongly encouraging) is held only by Plastikschräubchen and the entire bracket is chromed favorable. For that I give 2 points (in fact, you expect so that a wall shelf actually holds).
The remaining points are lost for some poor and deviating from the product description and especially the completely botched thread or the structure in total.