Shapeless back and lack of lumbar support: I tried to add lumbar support but it just doesn’t work with this chair. My lower back becomes sore and stiff after long periods of sitting. Seat cushion is quite firm. Incorrect seat height: the seat height is too tall for me. Specifications indicate 450mm min seat height but this is incorrect, my chair is about 465cm. Other 450mm min seat height chairs have been fine. FYI I am 160cm tall. Pretty disappointing. I bought the old grey colour on clearance.

It seems comfortable but time will tell. I wouldn't recommend for arthritis sufferers. The wheels took some brute force but everything else slipped together easily, except here should have been 3 M8/20 screws but there was only 2 (plus the 6 M6/35 and one erroneous M6/20)

I was resting in OWks, checking my list on phone and sat on this chair. Realised chair was so supportive, never sat on one so good. I bought it! Benefits: back rest is really supportive, seat can be raised slightly higher than a normal chair as I work at a dining table, arm rests fit perfectly, smaller female so edge of the seat doesn't cut off leg circulation. I didn't realise what I was missing 🤗 Expensive but worth it. Try one when you are in OWks.