This book is a book with out a bit of grey, and by that I mean everything is either love or hate, and I do both. I'll start with the hate, just to get it out of the way.
The majority of the um. . .art work (for lack of a better term) is horrendous (or worse), it's litterally what ever they had lying around, much of it was done with colored pencils, and if the book axed 90% of the art work it would be a much better book. I would have been ashamed to have had my name on the majority of the art work, however, there are a few pieces that are well done.
However, that is the only bad thing I have to say about the book, the writing and content is top notch. The idea and setting, if not entirely unique, is uniquely accomplished and wonderfully done, I love the ability to pluck pcs out of campaigns and put them where I want them (and to mix different races / classes from various campaigns as well). I love the fact that this world has feel to it and isn't simply another grey hawk (or forgotten realms, or etc.)
What it comes down to is this: If you like a strong flavor to your campaign, and if you like pcs to be able to have any race and class that they desire, and if you don't mind running a high powered campaign (minimum suggested requirements are 7th level and 1.5x the normal magic items) AND you can deal with a book that has completely horrendous artwork, then I greatly recommend this book. I fully plan to get the second book.