What is the weight capacity?
That would be a question best directed to the manufacturer but I don't think it would be a good idea for a person who is wider than the chair itself to lean back in it as the straps may not hold.
I weigh 150lbs and it feels as though it could hold much more.
I weigh 190 and it worked great. I expect it would be fine up to 230.
It depends where you place this chair; it is being supported by the object beneath the chair. Enjoy it! Zack.