I loved this series as a kid and I'm finally rereading it as an adult for the first time. It's definitely got a couple things that haven't aged well (some fatphobia, some ableism), but all things considered it's not too bad. In my opinion this book holds up and I would still recommend it to anyone interested in the series, with the caveat that it's aimed at middle school kids. We'll see if I still feel that way by the end of the fifth book but my hopes are high!