Rarely have I ever felt so old and slightly out of place. There were children and parents everywhere. (If only I had a child with me I would have been fine.) The entire show and atmosphere seemed to be geared for children roughly age 5-11 years old. [Note to those with children: take them when it comes to your city. They'll love it.]
Regardless of the intended demographic, I completely enjoyed myself. It was entertaining enough, and in moments like that you just have to let your inner nerd out and have fun. Sure, the fighting/stunts left something to be desired (it was kind of like watching a live version of Power Rangers), the dialogue was pretty epic (in the most cheesy of ways), and the half the actors sort of seemed like they hated their job. However, the sets were pretty incredible, and the light show was actually quite impressive. (At one point a man did run around while lit on fire. That was cool. And the kids loved it.)
If you do go, prepare for every child around you to be holding a "weapon" of some sort, whether it be a light up sword, a Cap't America shield, a Thor hammer, a whipping-wand thing, and to be inhaling an unseemly amount of sugar. And I highly suggest you participate in such endeavors as well.
Dialogue highlights from the show.
Thor: Let's go kick some Asgard.
Loki to Spider-Man: Just imagine great power without great responsibility.
Thor: It's hammer time. [Like, how could they resist?]
Iron Man: I've got one more trick up my sleeve. Teamwork! Avengers assemble!
Spider-Man: That was so hashtag awesome! I have to tweet about this.
Thor: I already did.
Spider-Man: You're on twitter?
Thor: I've got one million followers.