A really great and comfortable chair, you sit perfectly. Otherwise, I can only add my voice to previous speakers. I want to add one like. In this version of the chair, there is no seat angle adjustment. After long looking for the executed function in the description, a call made by the manufacturer the solution. There are several duo back 11 versions. This is just without seat angle adjustment by the manufacturer under "Ergonomically correct sitting is a matter of attitude!" Point 3 is recommended. This is also not retrofitted. Fair to say that even in "So her chair is delivered" describes this feature. So product corresponds to 100% of the specification.
Update: The quality made in Germany that is by now also such a thing. After a few weeks went ready broken the connection back chair. Fitter came and exchanged smoothly. But since you have to the back again and again to follow suit as it loosens. Quite annoying and the various screws taken for mounting cross was times times Allen. For the same screw. In addition, the seat cover up charges ever. So which one should be discharged only times when you get up. Therefore, now only 3 stars.