This is fantastic!!! I've added many results to my want-to-read list, they're very on-point from very few inputs. It would be really cool to import from a user ID, where you can choose some subset of your read list to inspire new suggestions, while excluding all books in your want-to-read and already-read lists. But that's an ongoing scrape to maintain, it's a cat and mouse game you probably don't want to start. I wonder what the legal status of scraped training data is... if you don't reproduce any of the review data I presume you're fine?