This one took a little while to get rolling but, once it did, it was a lot of fun (Which I certainly expect from a Jim Butcher novel). I'm a fan of most of the major characters and, while Captain Grimm may not quite stack up to Harry Dresden, he has some solid potential going forward. I also really enjoyed the air combat between the ships, even if some of the descriptions of events got slightly repetitive. 
 I feel the need to state that the dialogue is completely ridiculous. Early on, I thought it was corny and over the top, but as the novel wore on it kind of started to grow on me as Butcher is clearly writing it as intentionally over the top...For goodness' sake, nearly each and every character maintains their exemplary grammar and manners in completely dire and hopeless situations. Trapped in a cavern full of spiders? We'll be fine as long as we remain calm and civil!