Saw this last night. Absolutely loved it. It was everything I wanted it to be!
I really, really enjoyed this. It was pretty dark at times and sometimes creepy - but it wasn't too much - it was still a pretty light hearted action flick. You can tell it's Joss Whedon's work, there are his kind of puns all over the place. The audience was packed and we were all laughing at certain points. There was even a part which got a collective gasp and (strangely!) an applause! I kind of think it was just 2 people though getting really excited!
The story was great, Scarlet Witch and Quicksilver were pretty cool - Scarlet Witch had more screen time than Quicksilver though. Also, we got to see a lot more of Black Widow and Hawkeye which was awesome. I love the way that each character gets a lot of screentime, and at least something to do - they are never relegated to the background! I actually enjoyed it a little more than the first one!
You'll all love it, I think! Wasn't disappointed at all!