A longer review was eaten by the website, so this will be a bit shorter than originally planned.
This is a great book, well worth the buy. It has fantastic art and great exposition for all its major areas.
I did find a distracting number of errors throughout however, ranging from simple typos (such as the Alkenstar stat block indicating 93% dwarven population; or the description of Bhopan's Eternal Bloom palace not aligning with the provided map in cardinal directions), missed words in sentences, and confusing inconsistencies (such as the myth of Dongun Hold's "eternal stews" being incompatible with the fact that the city doesn't use fire for cooking for a season every year). Paizo usually has an excellent standard of editing and proofreading, which is what makes these errors all the more glaring.
I also personally do not understand the niche the Vishkanya ancestry is meant to occupy. The others are all great, but I fail to see what really sets the Vishkanya apart aside from "misunderstood", something already readily represented in other player options like the tiefling. They might have had a place as a heritage, but they seem to lack substance as a full ancestry.
