So, this was the final book of the Stone Moon trilogy... and I still have mixed feelings about the whole thing. On the one hand, the worldbuilding is undeniably thorough, and thoughtful - this particular volume switches narrators yet again, this time to explore the fruits of Roika's empire-building and how the Jokka culture has adapted to all the changes. (The fact that political maneuvering and legal loopholes are how the het manages, in the end, to preserve its "real" culture was strangely satisfying; I would cheerfully read more of that.)
But my real problem with this book, and the series as a whole, is what it has been from the start: too much telling, not enough showing. It's not that the characters here aren't memorable, or don't have personalities - I actually found most of the Jokka in this one quite endearing! - but rather that nothing is ever followed up on, so we are told that someone has changed but never actually see what prompted it. It's kind of tough to describe, but a good example: at the start of the story, Darsi seems to have some kind of unrequited crush on the narrator, but it's glossed over entirely in favor of action sequences; a little later on, we're suddenly told that he's longing after someone else (who I don't think had any screen time, either previously or afterwards); and then later, out of nowhere, poof! Darsi has deep feelings for yet a third Jokka, and this time it's apparently real. Darsi is no village bicycle, but with the missing depth of characterization here, you could probably be forgiven for drawing some different conclusions...
Maybe this might seem picky; in a less ambitious work, maybe it wouldn't have bothered me as much. But because this series is, fundamentally, not about an empire or politics but about the relationships between people and other people, and how complicated context can make everything... I expected better. I was having fun with the first two-thirds of the story - but then we narrator-hopped again and suddenly all the steam went out of the finale. Clearly it's not that Hogarth can't write good, strong characters... I think it's just that this particular series got a little too enamored of its Big Idea, and took on too many characters to play chess with, and ended up on some muddled middle ground between plot and characterization.