Overall happy with this purchase.  Easy assembly and very comfy. One of the curved bars was defective. The silver latch that locks the diagonal bar to the rounded end bar was missing. And the hole for the screw that is used to attach the smaller reinforcement bar to the two diagonal bars was not large enough for the metal screw to go through. I ended up spending a lot of extra time having to file the edge of the hole so that the screw could go through.