I bought the chair because of the positive reviews. For the money you get a chair with physiologically shaped backrest, tilt function and headrest, which is very irritated me personally. So far ok. But the processing is horrible: the feet welded together unprofessional, it puts you a cheap cover, the seat suitable for narrow eh people getackt from below the fabric only, the lower armrests quite narrow, the wheels on the carpet running hard. Overall, the chair makes a very light, cheap impression. Daily safe Suitable for 2.3 hours, but to sit all day it is hardly possible, I think. The chair has my girlfriend bought me, she sits very little more than 3 hours a week.