Feels less like the start of a new phase for Marvel and more like a bookend to a franchise. That said, Shane Black's dialogue delivers while his ability to direct big, coherent action set pieces leaves something to be desired.
Without a new thought in its shiny brain, this one would be easy to nitpick to apocalyptic ends. However, it is a pretty film with several really strong action sequences. Had it been any actor other than Tom Cruise, we'd probably like it a lot.