Took ages to put together as the screw holes didn't line up, so took quite a lot of physical strength to align the holes. Once completed looks good and is comfortable, but the casters fall off the bottom, and there doesn't appear to be any way to attach them more securely. This makes the chair unsafe.

Update: Wayfair sent replacement casters, which fitted easily and stayed on. The problem with the initial casters was that the small metal loops around the groove had fallen off/ were insufficiently tightened, so the casters wouldn't stay on. All sorted now, and happy with the finished chair.