This keyboard stand does exactly what you expect it to. The build quality is (as always from K&M) great.
This version, featuring a screw to adjust the height, works well. It is somewhat slower than the ones with a handle, but it's a very minor difference and the difference in cost is certainly worth it, in my opinion.
My only complaint is I wish it were bigger, as it's too small for me to use while standing, but I am very tall so I expect it's more suitable closer to average height.