My 17 inch laptop fits completely on it! (Is about 40 * 30 cm with regard to the bottom. Say it is not over, still have about 2 cm space on the Ablagefläsche of the holder)
If one has once set correctly, it is of good use. In the current position (obliquely forward, that is higher in the back than the front) I have a little trouble finding my wrists properly align / stabilize. Inasmuch as "the keyboard" now higher than before (because it was indeed on the table. So you have a small height "overcome")
With touch pad that's almost impossible, I connect a mouse, then it goes. The integrated Mousetischchen I have not mounted. By using the Tatstatur my wrists are einigermaßer on ... (right and left touch pad, ie on the notebook bottom)
What has me but rather annoyed, is the fact that the bottom of / is quite rough sharp and now my (glossy) desk was extremely scratched at one point ... :-( This should be observed as a producer! Say Filzfüße or what Anyway underneath, best non-slip. So I have to now still a backing arrange to protect my desk ..
So there are a total of 3 star.
I find him to be quite stable, whether it is aluminum ...? I do not know, I think so, like plastic, it does not feel to ...
Would I buy it again? Hmm, I have the time to test and answer me the question of whether the use of a notebook makes for me here at all meaningful or I with a separate screen (the then should be also increased) and keyboard should work. But perhaps help indeed already this holder, the desk pad and a mouse rather than touch pad? In a few days I'm going to be smarter, or simply "consult" my back and wrists.