Just another GR refugee. Other than that, I had a stroke in 2004, and read almost anything I can get my hands on, though I have a particular weakness for history, mystery, and historical fiction.
This is the final book in the Imperial Radch trilogy, and I really debated between 4 and 4.5 stars for this one - it is as good or better than the first volume, Ancillary Justice, and makes much of Ancillary Sword make more sense. (It really does read as one story chopped up into three books.)
If you can get past the gender/pronouns thing that is such a thing in Ancillary Justice (and I know some can't) - this is a first-class science fiction series. I would love to read more from Leckie set in this universe, and I feel certain Breq has more tales to tell. (Or I certainly hope so!)