I think I have warmer feelings about this series as a whole than I do about any individual book. I’m pretty fond of the characters and the universe, and the plot wraps up in a reasonably satisfying way. (It’s a mildly surprising conclusion, too: unlike what other Tchaikovsky novels have led me to expect, this one doesn’t quite end with everyone coming together. The ultimate bad guys just get straight-up beaten, possibly exterminated.)
I’m glad the betrayal-and-internecine-conflict plot was resolved relatively quickly after it was introduced; it made sense for it to happen, but it was a real downer.