Tailgating here is something else altogether, but if you are doing ANYTHING near ASU, then you already know about the party scene. Let us get to the stadium proper...
This place is huge. Standing down on the field and looking up towards that blue Arizona sky will give you a little perspective on just how massive this place is. Sandwiched between two mountains, it's easy to get lost in your surroundings.
The only bone I have to pick is with the fact the bathrooms are like finding water in the desert. I was expecting a stadium of this size to have numerous bathrooms, but I had to do more then a little searching to locate one.
If you are looking to catch a college football game and get the "big stadium" experience, Sun Devil Stadium is a pretty good place to start.