Roberta's place is fantastic. It's a big space, well equipped with an immensely high ceiling. Sanita is great place to stay, it has a great atmosphere, plenty of choices for good pizza, and the apartment has a balcony from which to watch the life of the area. Catacombs are just around the corner and old town not far to walk. The port and sea are a bit further away but don't let that put you off, the walk takes you through interesting areas, inc the Spanish Quarter. Thoroughly recommend Naples and Roberta's apartment.