Bella Napoli is really an on-site catering operation for private parties on weekends that happens to be open to the public at the same time.
If you can find a time when an event, such as a communion going on when we we there, is not going on, then a Bella Napoli meal might be more pleasurable. There is no escaping the noise or meal delay.
We were greeted warmly upon arrival...but no one apologized for the long 45+ min delay because the kitchen was backed up or the inescapable noise.
So my advice: call ahead.
Tip: The parking lot is small and valet parking is mandatory...so just park on the street.