I'm a librarian who loves anime, manga, and reading a wide variety of genres.
I'm still going over the translator's notes, but I'm finished with all the rest of it.
I doubt I'd have picked this book up if I hadn't seen one of the Judge/Detective Dee movies (Detective Dee and the Phantom Flame - lots of fun). It turned out to be really good, although there were way more torture scenes than I expected. The preface does warn readers about that, though.
I'd like to read Robert van Gulik's Judge Dee novels at some point. I loved all the information and details he included in his notes in this book.