First of all...It takes two to assemble it...for SURE....and it was difficult. Its initially comfortable but the design of the seat has a large "bulge" and the seat sinks into it so the pressure back of the thighs causes a dull ache like a charlie horse.I use a pillow to make up for the bucket seat design. I have aches in my legs and hips from days of use Im hoping I get used to it. The chair rides smoothly and tilts nicely but overall Im not too impressed. Aaah well...It was the least expensive chair in the bunch so you know what that means....