The pizza is excellent - Napoli style, as everyone else has noted.
The ingredients are fresh and delicious, and the selection is varied.
The ambiance inside is quite casual.
It was started right here in Vegas and there are only 2 other locations in the country.
Prices are good - about $12 for an individual pie.
Bonus points for being somewhat close to my house.
Double bonus points because I went there with 2 toddlers who were running around and screaming and the waiter was super nice and accomodating, bringing us extra breadsticks, etc.
Overall, Settebello is definitely at the top of my non-strip list for visitors.