As the title suggests the intriguing part of this novella is about origins and authenticity. The precipitating event is an attempt to discover the truth about a forgery but from there the action blooms into the political conflicts between solar systems and their cultures.
The central character is good hearted, self-deprecating, often bumbling and subject to deus ex machina. The central plot is a straight-forward romance bordering on comedy. However they are a reasonable point of view character into another part of the Radch universe and its is interesting to see the perspective of cultures that were mostly being obliterated and assimilated before. The smaller scale provides a richer sense of place.
I had read the other books before and enjoyed the new perspective of the consequences of the original trilogy but I think it stands alone and the references to the wider universe are more fun for fans than …