I've read Uprooted and Spinning Silver and liked those a lot, but this book really clanged for me. I almost gave up on it a few times, but persisted through to the end and found it to be mostly okay. It's a pretty interesting concept for a book (I didn't realize until I was finished that the Scholomance is from folklore) and I could imagine the next book being ok, but I can also imagine that I might not bother reading it.