Just as movies, suspending their association with the novels, I liked the first three with Damon quite a bit. At the end of the day though, I just can't forgive the decision to completely eliminate the Jackal story line.
I read the first one. Not a big fan. One of the few cases where I feel like the movie is much better than the book. Except for the selection of Julia Stiles.
Haven't read the books, so don't know the story to this. If he plays his character as well as Damon did Bourne, this too will be awesome. Having the two collide in a later movie = epic. Also, It has Edward Norton, so bonus.