Uncomfortable, leans forward even from straight up position and leans to the right side. The "Power Source F" cord is far too short, so that when you recline the chair the "F" cord is almost the same length! This makes it almost impossible to just plug into a wall socket without having to use an extension cord. Finally, the depth of the seating area is only 21 inches deep.  I feel that it doesn't suit, and is not very comfortable, for a person taller than 5 ft. 4inches, any taller than that, well... you get the picture. 
If it wasn't so much of a hassle to pack this chair up, I'd return it p.d.q. I'll not order this type of chair over the internet again .