This is easily the worst book that I have ever read. I do not know if this is because the writer is incompetent, there was no critical editing, or there was such pressure from whomever held the license that nobody cared about the quality. Regardless, the result is this pile of filth.
Here's the kicker: the story isn't bad. It isn't great, but it is a solid spy novel premise. Jason Bourne is living his life as David Webb, memory holes and all, when his life is threatened by an mysterious assassin. He finds his friends dead and himself framed for their murders. He gets dragged back into his old life as Jason Bourne and deeper into a larger conspiracy as he tries to figure out what is going on. Good, thrilling plot. Ludlum worthy. What destroys this book is the ineptitude of the writing.
First, this book takes place in the present day, with cell phones, laptops, and Grand Theft Auto (more on that later). And yet, the author maintains Bourne's origins from the Vietnam era. The Vietnam War lasted from 1955 to 1975, when the last American troops were pulled out, at least thirty years before the "present day," if we base that off of the copy-write date of 2004. Even that is a bit of a stretch, since Ludlum had Bourne have significant diplomatic and undercover career before Identity, which took place in 1980. That makes Bourne at least in his fifties, and more likely in his mid-sixties. However, the author also makes Bourne's son, presumed dead with Webb's family in Cambodia and the reason Webb became Bourne (not a spoiler, it's obvious from the get-go) in his mid-twenties. Bourne actually talks about having his family die about twenty years ago. Which would have been the mid-80s. All of this would have been easily fixed: change the origin, set the book in the eighties or nineties, or do like the movie did and change the main character.
Second, the author writes about things that he clearly doesn't know about. At one point, a minor character's internal dialogue reflects on how impressed her son was when she cut him off while driving in Grand Theft Auto. Grand Theft Auto is a single player game. All other concerns with this section, like GTA isn't a game for kids and that the cars handle like bricks, are irrelevant because of this. Here's another: Jason's jeep is spinning out of control and heading for a cliff. So naturally, he puts it in neutral (!!!), but that isn't enough. He needs to turn it off. WHAT? Why? How is turning off a vehicle going to help you regain control? If anything, you'd lose power brakes and steering, two very important things if you are trying to control a car. What this does is it takes the reader and slams him (or her) in the face with something so stupid that you literally cannot stay with the story.
Finally, there are the inexplicably poorly written and conceived pieces, where the author was not paying attention to what he was saying. An elevator plummeting down its shaft... for a floor and a half (during which time the character inside the elevator had the time to push a button, realize it wasn't working, pry off a panel, and reconnect some wires). A gun shot rings out, fired by a man holding a silenced pistol. A basement that is pitch black for some characters while others can see clearly (no, they don't have night vision). And, the worst, Jason is sitting in his car, listening to the radio and looking OUT the filthy windows of a diner. These aren't minor, throw-away scenes. Each one of these is a MAJOR plot point. The room being pitch black is what makes one of the bad guys run away, leading to a car chase and the book's finale.
In summary, a mediocre story, written without a stitch of talent and allowed to slip through because they knew it would sell anyway.