I thoroughly enjoyed this movie. A solid 8 of 10 for me. I actually liked it as well as, if not maybe a bit more, than the first.
What is really pleasing to me is that it is based on a novel, but really has nothing whatsoever to do with the plot from the book. In other words, The Bourne Identity, The Bourne Supremacy, and The Bourne Ultimatum actually provide 6 different stories--three in the novels, three in the books. And while I guess I liked the books better, the two movies have both been good in their own right, unlike the usual situation where the movie is a watered-down version of the book that tends to leave out so many important elements and plot points, or merges characters and events. Here, they simply took the names and the general character traits, and created something entirely new.