Being Asian myself (might be a Tian-Shu, in Golarion), it's both exciting and interesting to see the setting of "eastern culture".
As it turns out, this book is full with interesting ideas, especially in races and deities. I can't stop smiling when I saw Sun Wukong made into the list.
However, as the other reviewers point out, it's a relatively short book, every regions only has one page or so. For a Gazetteer, it might be enough.
For someone who's looking forward to run a full Tian Xia Campaign, you definitely need more.
Here's hoping we can see the hardcover Tian Xia setting book in the near future.
I just ran this with my friends. We all agree this is a very soild one.
I would suggest anyone who wants to run Souls for Smuggler's Shiv spend some time roleplaying
the crew members and the on board scene, this will make the adventure much more memorable.
Highly recommended!