I didn't enjoy this as much as the others, but it kept me very engrossed up until the end. There were some excellent pay-offs that had been set up in previous books, and some very skillful world-building ends being tied up. Some not-terribly-subtle analogies to the evils of late-stage capitalism and climate change, but sufficiently cloaked in the in-world trappings that I didn't feel preached at. (I prefer my books as escape rather than commentary, so if there are analogies, the subtler the better). Overall, I preferred the other books, because I think the inside of the Scholomance is more richly built than the world outside, and the pacing of this particular book didn't quite work as well as the other books. But it was a satisfying end to the series, and it kept me up very late and shamefully neglecting Mr Ergative, so, y'know, it did the trick.