Not what let other reviews suggest

I did not at the first test sitting really so clear. But have it not be returned because I could not disassemble it and I did not really have time to do so. Had I once made it better.

The chair is adjustable in height, for me at just 1.70m more than adequate. I place him but only minimally higher one, legs ache after a brief and are deaf.
The backrest can be continuously adjusted in the inclination.
The armrests are not adjustable.
The headrest can be adjusted in height, but in depth, so I have at least garkeinen contact therewith.
The rolls are great on solid ground.
Turning the chair is fine.
The back cushion can be adjusted in any way. It sits a little deep for me. Moreover, it is quite firm.
The split seat relieves the Geßäsmuskulatur, however, is getting used to. If you sit slightly uneven in the chair you realize this immediately, because it is crooked. In addition, the armrests are attached thereto and jiggle.

All in all, I feel a significant pressure in the lumbar region when I'm only an hour in the chair, which I find very unpleasant.
The seat is in variable insofar as one can vary the entire backrest accordingly, but what brings nothing if it is against the stop while 7cm hanging in the air at the knee.

All in all, I got me from the chair and hoped more would see that I get rid of him, because I already was allowed to enjoy a weekend, a blockade of Ichias-Agral joint and every movement was sheer agony.