If "location-locatioin-location" makes for a great piece of real estate, this place has got it, literally a stones throw from Piazza Gesu where the most recommended walking tours of Naples begin. It's also surrounded by restaurants, shops of all varieties, and sources of fresh food. A good supermarket is about a block away and a great "wine shop" just outside the front door on street level that sells beer and liquor too. But despite that, we were never bothered by noise from the street. The piazza is a lively, energetic festival of young people at night but no yelling, just a lovely buzz, and in the mornings it is totally quiet and still.
Then add on the wonderful apartment and meticulous host, Elizabetta, and it is as close to a perfect home away from home as you could hope for. It is hard to think of anything to improve in the apartment for amenities and Elizabetta was checking almost every day if there was anything we needed. She also gave us invaluable advice about where to go for sightseeing and how to get there. We would go back there in a second if we ever visit Naples again.