Yep. So. It was good. It was as good as Thor but I still think Iron Man 1 was the best origins movie for this set of Avengers.
Evans was good as Captain America and the backstory worked well enough. I thought that once he really turned into CA that they truncated some of the action because they took so long on the build-up and still needed time for the final showdown with the Red Skull at the end.
The movie didn't start or end where I thought it would, that's neither good or bad, just not what I expected. Flowed well for most of it, the story was okay, but maybe lacked a little exposition...that may be something we'll have to wait for the Avengers to get more of.
Over all, glad I went. It was pretty fun and the Avengers trailer at the end kicks ass.