Not bad, very engaging. I thought the death of a major character toward the end and the way of dealing with Pekka were way heavy-handed and unnecessary, and there was no real payoff for either of these (spoiler) plot points...

The main enemy of Kaz is Pekka Rollins... who is basically doing the exact same thing as Kaz. No one really changes that much in this and the lack of dynamic characters in a book so clearly focusing on character development (entire passages about just what a particular character feels about an imagined outcome) a bit irritating. Liked it all the same.