The E Center is a great facility for all types of events. I've been there for hockey games, concerts, monster truck events, motocross, and WWE (at the time it was WWF) wrestling, and there really isn't a bad seat in the house. The sound has been excellent in the many rock concerts that I have attended there as well. Concession prices, as in all venues and places of interest, are a bit pricey however.
Pros: small arena, great seats, good sound
Cons: concession prices