Lots of things to love in this book, from the instructions on how to do research to the comments on "low self-esteem". 
 I thought the repetitive structure might bother me as an adult but... it doesn't. It really doesn't. Snicket himself lampshades it, for one, underlining that yes, Olaf will be there at some point and no, this is not going to go any better than the previous books. Also, just as when I read it as a child, it's always interesting to find out what the evil plan actually entails and, even more so, how the Baudelaires are going to get out of it this time.