1. Poor padding. This is by sitting after a few months. 2. As soon as support for the back, because the "Londorsenunterstützng" is only ne bulging in the backrest. 3. headrest not really make sense, because it is too far behind ... I had drauflegen a 10 cm thick cushion, so it ever supported. 4. The "mechanics" draws a legs up in the air, if you teeters backward. Good mechanics stay ahead at the same level and reduce only the rear.
Conclusion: Ergonomically not recommended, rather drauflegen something and what to buy decent, otherwise you pay later with back pain strikes only.
