Was like my Vorrezensent first skeptical because of all the good reviews. But after I had built the chair in record time (just 4 screws) followed by the pure enthusiasm. The chair is very comfortable, makes absolutely no noise and is very stable. In addition, the angle of the backrest is both infinitely fix locked, but can also sit back leg "go along." A small drawback, however, is that you can roll away quickly on the floor, so order any corresponding roles or something inferior. Furthermore, it is also possible to retrofit an armrest.