I bought this as a prelude to the Campaign Setting because I was impatient and a subscriber to the Chronicles.
I think a wiser purchase would be the Campaign Setting since that book includes the gazetteer "and" expands upon it.
However, if someone can't afford the Campaign Setting, this book will do. With what it has, it's on par with other products here.

As has been mentioned elsewhere, this book is a great introduction to the world of Golarion. It features a ton of adventure hooks and cool information about the various nations, despite its low page count. Definitely a product I'll recommend to anyone who wants to get an idea of what Golarion has to offer.

After reading this little bundle of joy I have to say WOW, simply WOW! The history and lore of golarion presented in the book is top notch and a great choice for any whom wish to start their adventures in this new world of gaming! One could tell that the time was taken to make this a top notch item. Format and Artwork also recieve top marks!
A must have for future Pathfinders!
Well done Paizo!

I like Pathfinder Chronicles: Gazetteer. Golarion is a world on the brink of disaster, with every nation looking for trouble with its neighbors, is in trouble, or both. And unlike fantasy worlds like Greyhawk or Forgotten Realms, major forces of good are few and far between. I like the sense of horror pervading throughout the area, with the Eye of Abendego -- a massive, supernatural storm -- off the coast; Asmodeus as a major deity of the Chelexians and a threat to everyone else; to such nations as Galt ("Eternal Revolution") whose populace beheads its leadership every few years.

Full review

I thought this was an awesome product. For $13 bucks you get a LOT of flavor of the world of Golarion and get an extensive history to boot!

It also REALLY feels like an epic D&D world. The designers really put a lot of thought into the world to design it as realistic as possible while still being a D&D themepark. Great stuff!

This is an excellent start to building up your Golarion campaign. Haven't seen much of it, though, since I started passing it around amongst the players.

If you've purchased any of Paizo's other products you're well aware they go the extra mile to put together great products. Suffice to say this is gorgeous as usual. It’s clear the setting is going to provide a deep, deep well that you’ll be able to pull from plenty of times before running dry.
The character section has lots of fluff, not much crunch (rules). The roles for each of the races and classes are well thought out. The human populace still dominates and a vast array of different human cultures is provided that will make for great role playing opportunities.
The Timeline provides plenty of interesting disasters and celestial events to mine for adventure hooks. There are lost empires and evil tyrants locked safely away (ha!) to cause some mischief.
The nation descriptions are the meat of the text. There are obvious stand-ins for ancient Egypt, Arabia, deepest darkest Africa, and even flavors of the Far East. These stand-ins are familiar enough to DM’s and Players that they can jump into a campaign or adventure and immediately know the style/feel of play. Having these familiar locales will make it easy for newer DM’s and players to start playing right away. It also will facilitate more of the traditional “pulp” style adventures to be available in the setting if that floats your boat. (down the river into the deepest jungles…)
I’ve always had a fondness in my heart for the cleric class so I was interested to see more details for the deities beyond what’s already been published. I wasn’t disappointed in the write-ups as they gave a good flavor to each of the deities. I could easily see playing any of the good/neutral clerics and could definitely see DM’ing the evil folk as well. I would have liked asingle feat thrown in for each much like in the character section, just to add a bit of crunch. Guess you have to save *something* for the hardcover though!

This is a great introduction to the Pathfinder setting. Just reading the book makes me want the hardcover campaign setting even more. I highly reccommend this book.

This is by far one of the best informative peices I've have seen for a campaign world ina while. It gives very flavorful bits to it that helps any player or Game master to immerse themselves in their character and their world.

My hopes is this will be the model of all rules light but information filled books for the Pathfinder Campaign world.