Visually appealing, assembly cumbersome: You have already mentioned how to drill very accurate. The metal hooks are packed with me with the respective screws in a plastic bag so that you know exactly which screw goes where.
When I try to install the hook using the supplied screws, the screws are too long, so that they come out on the other side. It seems as if the structure was not tested, otherwise I can not explain it. I have bought other screws and everything mounted so.
Because of the complicated assembly and the wrong screws from me no recommendation.