I managed to see this and I was very pleased by it. It was well made, interesting, had some great visuals, but it did have some downfalls.

I have to still put Thor and Iron Man above this, but it is better than the Incredible Hulk and Iron Man 2. There are some things I ponder though
(SPOILER) I think I'm pretty sure that Red Skull was transported to one of the other 8 realms and he'll probably end up being a villain in the Avengers movie. Seeing the cosmic cube later with Stark confused me a bit as I wonder why the mention of the cube and it's technology wasn't seen in any of the other movies, but it will return in the Avengers. I also speculate if Derek Hunt's character was a reference to Isaiah Bradley. I was hoping for some deep portrayal of the cruelties of war and what not, but the movie's quality did not make me upset for the lack of that. Bucky was probably frozen too just like Cap.