Unfortunately, I found the movie quite boring. I thought Ruffalo was great as the hulk, the rest of the characters there was barely any development whatsoever, other than their inflated egos making them annoying to watch on the screen. I really wanted to enjoy it, but unfortunately I think Marvel films are starting to fall victim of following the formula that made Iron Man a success, cheesy, sharp one liners, but little substance beyond that.
If they made the movie 2 hours, instead 3 with a shiteload of pointless padding, I probably would have enjoyed it alot more. I also thought the 3d was done quite poorly as well.
It was a nice nod to the comics, but the story telling was like it was straight from a comic, it just didn't do anything for me. I thought x-men first class was a far superior comic book movie to this, even though it had plenty of flaws too.
Loki was a pretty ordinary villain as well. I didn't really expect much going in, so I didn't walk away disappointed, but after all the positive comments about the story-telling, I found them to be quite unfounded. It was a hell of a lot better than Captain America and Thor, I'll give it that.