This book is good. Read it and prepare to have some knowledge dropped!
I've been more GM than player in my time, and I found some good insights and helpful tips in here. It's one I'll refer to many times. Next time I'm ramping up for a campaign, I'll definitely have this handy.
It is surprisingly easy to read, too! And the illustrations, while corny were for the most part entertaining and added quite a bit to my enjoyment of the book.
My only beef: the author comes down seriously hard on playing non-human characters. While I agree that they are often reduced to "funny-hats" I believe that a player (or GM!) who really wants to wrap his/her brain around a different alien race should give it a try. It can be a lot of fun!
Bonus points also go to this book for being very genre neutral. So much stuff is heavily weighted towards that one big ol' fantasy game, it was nice to see a "how-to" that was broadly applicable.
Well worth reading. Thanks!