I saw lots of things that look "OMG WOO". But I almost saw too many things to fit well into a movie.
Yes, by this point there shouldn't really need any character introduction except for any villain getting more then post-credits screen time. But still, that's an awful lot to fit in. I remember how the first Avengers movie, which I though was excellent, still facts giving some characters time to be the type fo heroes they are. Now this has everyone and the kitchen sink.
I have high hopes, and am wishing the best.