Diego is the best host you can hope for. He gives you tips about the city and takes care of you, being always available if you need anything.
The flat is as described and seen in pictures, quiet at night and pretty close to the city center and metro/train station Piazza Cavour, which connects with so many important stations to move around Naples or take a trip to Pompeii and Sorrento.
If you are thinking about travelling to Naples, this is the place to stay (: