What frustrated me is I wanted to like it so much--an awesome concept, great steampunk setting, and I liked quite a few of the worldbuilding bits. But I just couldn't connect or care about any of the characters. I was mildly interested in them, but I just couldn't empathize (and I wanted to--I really did want to love this book). So in the end I simply didn't care, and that in turn resulted in the climax and casualties not affecting me at all. I liked how it happened, from a "shiny idea" standpoint, but I was left cold and unaffected.