Extremely uncomfortable. The top of the back has a non-padded plastic bar that is very noticeable when you sit back in the chair. For me it hits right across my shoulder blades. Terrible design.

Update: Chair is even worse now (6ish months into using it). Seat cushion is completely useless. It's like sitting on a wood plank.

My advice is to wait until you can afford to go up to the next price level. Dont waste your money on this.