I just bought the chair and give up. Unlike other reviews but were nevertheless all screws and tools that you need it. However, it took me a while as a layman, I was able to assign the right places, the screws and the construction thus proved somewhat difficult. Otherwise, I am quite satisfied. The stand has quite a large welds and does not act as high as that of my previous chair, but I'm assuming that he will carry me long enough :-) The substance I find very chic and comfortable, the seat back is for me still a bit strange (I suspect that I usually quite wrong sat on my old worn-out "executive chair"). The armrests as required something more "outside" or are closely mounted on the seat, and a bit further forward or back.
For 5 stars the Qulaität would still have to be a bit better. In addition, the chair when unpacking parts were quite dusty, which made the impression but clouded initially. Overall, I am very satisfied and therefore give 4 out of 5 stars.