Captivating, breath-taking, stunning are my comments after cramming the book in 5 days time. Though time-killing, I find the book exceptionally enjoyable, even better than the previous four. The style is more or less the same, but with more rhetorical phrases and an improving sense of humor. A wide range of vocabulary is introduced, which means you may have to consult the dictionary frequently if you taste the words bit by bit. Some magical incantations are new, but the meanings of them are not hard to guess.
Comprehensive sketches of characters are introduced. You can actually figure out what sort of feeling each of them had, say miserable, ambivalent, anx