I was very impressed with this map folio, so impressed that after picking this up in a store, I went here and bought many of the other map folios as well.
It contains three large and well-printed poster maps, one of the Crown of the World, the polar region of Golarion, one of Kasai the capital of Minkai, and one of the entire continent of Tian Xia. The city map is unlabeled, the other are labeled.
The most important map to me is the one of Xian Tia, and that makes the entire folio a little mislabeled in my opinion - the most useful of the map has little to do with the Jade Regent adventure path, and is rather a poster map of the entire continent of Tian Xia. It goes more with the Dragon Empires Gazetteer and Dragon Empires Primer than with the adventure path. If you are interested in the dragon empires, this map is a must-have, as good at the poster maps of the inner sea region.
The two other maps are more relevant to the adventure path, but also of less general interest. A polar map is more of an oddity and mostly empty, and a city map is very nice if you are in this somewhat off-center city. The city does have a very nice oriental feel to it, Kasai has an oriental feel unlike the cities of the inner sea region and is very well made. I like that it is not labeled - information on city locations are in the last book of the adventure path where you also find a labeled DM map.
I can't escape the feeling that this is two half-products - a map folio for the adventure path, and a continental map of the Dragon Empires. The adventure path would have been better served by a more detailed map of the Hongal, Forest of Spirits, and Minkai area. And the continental map could have been larger, printed on two posters, and been its own independent product. As it is, the continental map has another scale than the maps of the inner sea region, which can be misleading.
Still, this is a lovely map folio, and I give it five stars for its beauty and for the fact that you really want this if you play in any part of the Dragon Empires.