I didn't enjoy this book nearly as much as I enjoyed the previous. A large part of what ruined my enjoyment was the premise, I didn't buy it. Apparently Jason Bourne was the only one able to replace the other Jason Bourne and kill Sheng. Why? Do they not have other agents available? Why would you send an agent into the field with amnesia, who is known to have debilitating flashbacks? He didn't do anything that another competent agent couldn't have done. I will say despite the flimsy excuse to bring Jason Bourne back into the field, I did enjoy the bits where he walks someone through a scenario. As the fake Jason Bourne put it, he's a technician. I don't think I'll enjoy the following books as much as I did the first, something tells me there will be the same flimsy excuse to bring Jason Bourne back, but I'll still read them for those brief sections that I do enjoy.