We finished our 2-week Mediterranean vacation yesterday. 5 days in Rome and then a 10-night cruise to Italy, Greece, and Turkey.
This past Sunday we were in Naples. My wife and I walked for 7 hours and ate our way through the city. Sadly, many popular places were closed (i.e. da Michele, Ciro Salvo, etc.)... but we had lunch at Lombardi 1892.
The pizza was excellent and actually made me impressed with my own efforts (thanks to all the info on this site). My wife and I both consumed a Margherita pizza.