This is the first book I've listened to without having read first. It was a strange experience to say the least, but fitting for a strange children's book.
Since not having actually read the book, I can't comment on the text itself. The story, however, is very weird, very enjoyable, and I very much like Mieville's world building scope, vibrant cast of characters and their meandering journey through not-London. It's a tale for both children and adults who still enjoy reading children's books.
I'd like to think of this experience as my first peak into Mieville's crazy worlds, but I don't think it counts because I didn't read it. I will have to return to this book at a later time.