I know a number of folks did not speak very highly of this book or of others that Lustbader wrote. With the exception of one novel, I've read all of the Bourne books up to this one. I think this story fits in line with the series. The one annoying thing I can say about the book is the authors over-use of similes in the first half of the story. Literally every other page contains at least two or three overly used similes to describe the scene.
A good bit of the book does deal with the primary antagonist to Jason Bourne, but I thought that contributed depth to the storyline and did not distract from what we know of Jason Bourne.
As some other reviewers have already said, open this book looking for a good thriller and you will not be disappointed. Open this book and compare it to the master works of Robert Ludlum and you are bound to be disappointed - just like you would be disappointed if that was your mindset when opening up any other thriller or adventure novel published today.