I saw the movie last Saturday, so basically 2 days ago, and I have to say I thought it was very entertaining and an enjoyable movie, but it still wasn't as good as the first. The only problems I really feel like I had with the movie were:

1) Why does the Hulk have some sort of inconsistent writing between Avengers 1 and Avengers 2? In the first Bruce Banner is able go in and out of Hulk with complete control over it, which is why he is able to save Tony from falling in the first movie and even shows some bit of personality and can talk as well. Now in the second he apparently has no control over the Hulk anymore and needs to be calmed down in order to get out of it.

2) The whole Black Widow/ Bruce Banner love thing also seemed out of place as well. None of the other movies or the first Avengers movie even hinted at this in any way, also you would think that after The Winter Soldier it would be Captain America and Black Widow.

3) The first one was a lot funnier. Age of Ultron had its funny moments as well but it doesn't compare to the hilarious constant scenes the first one had.

4) I feel like the way the story came together in the first one as a whole was better as well, but that one is just my opinion then I guess.

Either way I really enjoyed the movie though and thought it was a good sequel.

Would depend on if it stays in the movie part or not. There's already the SHIELD index. Lots of people with some sort of power or enhancement.

But i think and hope Civil War will be a surprise.

1) Hulk was never an Avenger for long in the comics, his personality, state of mind and inteligence are all determined by his anger and levels of radiation. See Mr Fixit as a great example of this. Standard Hulk's personality is that of uninteligent man, his still can be reasoned with, still cares for others and can still fight along side people. Banner has no real control over his transformation and I presume it was added just for cinematic effect.