The book is interesting, and fairly well-written.  Most times the author manages not to sound too much like a historian, and keep the story moving.  Apparently some of the research was ground-breaking, and led to revelations of previously top-secret classified documents.  

It was also used to help make the movie Munich, I imagine.  I liked that movie when I saw it.

You can also find some interviews with the author about this book, and reviews as well, online: NPR, New York Times.

Overall, it’s a pretty good book.  I’m glad I read it, but I didn’t learn that much new.  The most insightful pieces had to go with different Israeli prime ministers, and how they made assassination-related decisions.  That was fairly fascinating.