I would say that it’s worth picking them up. Brandon Sanderson does a pretty good job. It’s not the same as Robert Jordan, but it doesn’t have to be. He does a goes job of capturing the feel of the series. And it reads differently from his own books, which isn’t easy to do. And I love how the story unfolds in the last book. There were definitely some story points I did not see coming.
Like others have said, usually there’s a bolt on the underside, but I have trouble seeing it in this picture. In some faucets (also some Grohe) there’s an Allen inside the faucet. Remove the spout by loosening the ring around the spout and there should be a threaded rod in which fits an Allen key.