Camp Randall might be the most fun stadium I've ever been to. And I've been to quite a few, including the Big House, the Superdome, the Horsehoe, and Death Valley in Baton Rouge.
I came as a visitor and wasn't sure what to expect outside of jumping around after the 3rd quarter.
Despite having lost and it being cold and wet, I had a blast. The atmosphere is amazing. The people are incredibly friendly and love talking football (especially trashing other schools in the B1G).
I would go back to Madison in a heartbeat.