I started reading Blackfish City earlier this year, but DNF'd within a few chapters because a) I didn't particularly like any of the characters, and b) the worldbuilding frustrated me in the sense that it read (to me) like it was written by someone who decided to pull together some Arctic-culture cool bits without bothering to learn anything about real-world communities in that kind of place, either the Arctic or what frontier/edge-of-civilization places are actually like.

(Contrast with, say, Tobias Buckell's similar book about a warming Arctic and a floating city there, which wasn't my cup of tea for other reasons, but the city itself totally felt real to me, even though Buckell is from the Caribbean; he's just really good at evoking that kind of setting. Miller ... isn't. At least I was not convinced.)