The chair seems comfortable so far. My only concern is I bought this chair because it stated in the description that the weight limit is 500 pounds, and thats why I bought it. I dont weigh nearly that much, but I wanted to make sure the piston didnt give me any issues overcompensate as I am a plus-size girlie. But the book states the weight limit is 300 pounds, and Im not sure which is a correct description.the insustructions are vague In some areas, and the wrench isnt the best. The video doesnt show things very clearly, either specifically the metal bar that connects the seat and the back of the chair and. Which direction should it go.