I get that there's a mutiny on and that Moon has a lot of balls in the air. But the best authors manage to balance and control those balls; Moon doesn't quite. The plot ends up scattered and confusing, without a center or a sense of progression. Characters drift in and out. Plot threads start up out of nowhere, with no foreshadowing or sense of place.
The characters are still great. The sexist overtones that began to be introduced in the Esmay/Barin relationship made me roll my eyes, the brilliant Gary Stus that solve characters' problems keep popping up out of nowhere (in this case, the professor), and Brun's character development continues to underwhelm me. But Heris, Cecelia, and Esmay continue to be wonderful (and we even get a scene of Heris and Cecelia together, for old times' sake).
I believe this is the end of the series. Moon's way of tying it off is to dump all the (living) main characters in a bar together, give them all happy endings, and have them sing "Jerusalem" (to updated lyrics). I would have liked a slightly less abrupt & pat ending, but it is what it is.
On the whole, I have enjoyed this series, particularly for the main characters (Heris, Cecelia, and Esmay; not so much Brun) and for their interactions with each other, as well as a rich cast of secondary characters. I don't think Moon does romance very well, and her plots and pacing are of variable quality. Still, the world she creates is an interesting one, and fun to explore.