I just saw it.
I enjoyed it, perhaps even more than the first one (I'll need a couple more viewings though)
Good performances all around and quite funny with some great lines.
The fight scenes were also very good.
However, it had too little Iron Man in it for a second Iron Man film and with the origin and introductions out of the way.
And the Final Battle with Whiplash still suffered. Far too quick and easy.
And of course I can not help but mention Scarlett Johansson. Simply magnificent...
The very definition of sexy no matter if she was rocking business wear or kicking ass in spy gear.