I liked the film, particularly the first 45 minutes ([BLACKOUT]Nicky's death hurt, but I'm not THAT beat up about it[/BLACKOUT]), but I think that it really struggles to conjure up enough story to justify its own existence, followed by sequel baiting at the end without having earned the need for more films. 
I still thought much of the direction, editing, acting, and action was on point, but the film definitely coasts a bit too much on familiar thrills without having major story wrinkles to back up this return. The action is nice, but Bourne has always been about story-driven action, particularly in Supremacy and Ultimatum. In turn, it's not as big a step up from Legacy as I might've wanted (where there's a story, but that story is fairly stupid - see: "I NEED MY CHEMS"). It IS a step (or several) up in my eyes though.
Regardless, I enjoyed the film and was thoroughly entertained by some of the action set-pieces/sequences throughout its running time. I might even watch it again, given the chance. 
Overall, I think it's a decent film.