Not impressed. Seat cushion feels flat and hurts after about an hour in the chair. Arms and back are wobbly and move when you shift you weight. Not an impressive chair by any means.
As I type I am sinking lower and lower and lower. The mechanism that regulates the up and down movement (kind of a hydraulic cylinder) failed after about 8 months of use and it's a ride down. It lowers about a centimeter at a time so it's like the click click of a roller coaster but going down instead. It's the most frustrating thing ever. I can't stand this chair.