I really enjoyed this book, I thought the world that the author made was very interesting. I've read that some people didn't like all the world-building that was going on, but it was a completely new take (to me at least) on the "alt-history-europe-with-magic-and-maybe-some-steampunk-flavour". Although I don't think this book counts as steampunk. Gas Lamps and one airship don't really make me think of steam-powered mechas and walking cities with Baba Yaga legs. I will definitely be finishing this book series though, because I love Cat sooooo much. Maybe the second book will be more steampunky?