Good action, predictable plot. Same vein as the previous mission impossible films, Ethan Hunt is Tom Cruise is Ethan Hunt so nothing new there, stunts are cool though. Simon pegg is tolerable for the first time in a non-comedy role, which is an achievement in and of itself.
Jeremy Renner absolutely steals the show, this guy would have made a far more convincing bond than Daniel Craig, much more repressed emotion, an impressive performance that overshadowed Cruises step for step, he even steals the lime light at the end.
Paula Patton is... forgettable? as unimportant as her French female assassin adversary.
Michael Nyqvist puts in a rather reasonable villainous performance, proving Cruises match in a horrendously drawn out car showroom fight scene, and unfortunately, uttering no dying angry words :( The scene where the Kremlin is blown up is rather impressive, as is Cruises seeming ability to run faster than Usain Bolt and then forget that he can run fast at all....
Two things that really stuck out as just plain silly, were the 'goggles left on head, then in pocket, then oooh that was lucky for the sandstorm! run. And, 'Mission Accomplished' - that wasn't just a corny nod, it was damnably awful scripting, I died a little inside at that.
Final notes would be - stunts, action, fight scenes, prison scene at the beginning, Kremlin explosion, scaling the sky scraper of doom... all awesome. However, poor choice of actors, acting, scripting, lousy transparent plot etc. - not a stretch for the brain, not even a tiny one.
Hopefully.... thats an end to it, but it won't be...