Overall good movie, although they sort of suffered from trying to stuff 10lbs of shit in a 5lb bag.
Biggest gripes were:
(i) the whole Thor in the fountain side story, it didn't really make sense, especially when they tried to tie him back to the vision. They never explained what that fountain was, or where it was, or why or whatever.
(ii) The Vision was a little silly. Like he comes out red, and then he's like Im naked, I'll put some green on, and then he sprouts a cape for no reason. Corny. Also, I sort of wish that he was just Jarvis. They didn't really do a great job of explaining that he was the mind gem, or that he was really aware that he was the mind gem.
One of the things that I really liked about it, especially in the post DC movie world, is that the Avengers were really all about saving people. They go out of their way to show them saving people first and fighting the battle second, or trying to get the people out of the way before they fight the baddie. This is what Superman completely missed. Dude is an alien that people dont understand, and he seemingly doesnt GAF about all the skyscrapers crashing down around him while he carries out his private alien beef. That is totally antithetical to Superman, and I am sure we are in for more when Supe and Batty destroy another whole city bc of some private grudge. Anyway, glad that Marvel at least pays attention to the hero part of super hero. Like they are here to save people. (nevermind in this movie they are saving people from their own creations).