At first I was a bit skeptical because of the price, after the assembly's concerns, however, were buried jiffy. During assembly it should be noted that the supplied Allen key survived with luck just the installation if you are lucky. However, this is not the end, even if you have no matching Allen key at hand, the screws are manufactured so that they can also be a commercially available wrench, a ratchet or similar tool "bdeienen". All in all - a very comfortable seating, even after several hours, remarkably stable and not pinched or hooked.
Two points that you should consider - the chair is unlike kmeinem (though about 5x as expensive) predecessors not so against tilting. I have thus been located at the nose as I was used to from the previous, to me nice slouch with all the weight on the side rest. And for people with longer legs is the highest sitting position although convenient but if you previously had no office chair with armrests, it rattles the backrest out of habit often times against the table edge.
All in all - a great chair. Definitely recommend to others.
