I went last year, and it was pretty good despite being cloudy and chilly.
You've probably already read it, but for everyone else:
"Tips to enjoy the show"
The tips I have below are somewhat covered in the link, but as I remember:
-Comfortable shoes will be needed to walk from one part of the event to another.
-Also expect to be searched and go through a metal detector like at an airport.
Oh, I don't think they had any fast food restaurants like a Pizza Hut or Taco Bell there, but they did have vendors that sold hamburgers, pizza and other things. The reason I mention this is that you'll need to bring cash as I don't think they took credit/debit cards. Or, you may want to eat before you go.