Age of Ultron...

...was pretty much what you'd expect - loud, lots of explosions, reasonably well plotted (though as in some other movies the main characters make most of their own problems) and fast-paced throughout. I'm not going to describe the plot in any detail, but here be spoilers:

( SPOILERS!!!!!!! )

On the whole I enjoyed it, but Winter Soldier was better.

I've left out a lot here because it's even more spoilery. See it yourself if you want more, and please don't leave spoilers in comments, I'll delete them.