Our stay with a family of 7 including 2 seniors (grandparents) and 3 children ages 8-14 at this apartment was lovely! The location is excellent in that you are steps away from the waterfront, which is lined with restaurants and features historic Castell dell'Ovo. You are also about a 10-15 minute walk to the Via Chiaia, a pedestrian walkway lined with shopping that leads to Piaza del Plebiscito. The apartment was well furnished, very spacious, and comfortable. It was also very clean. The building felt very secure and the area outside the building seemed safe. The building has a security/doorman who greeted us and knew we were supposed to be there. We never felt uneasy about security in the area. The street noise was surprisingly minimal (the windows and shutters do a very good job of blocking it out), though we could occasionally hear the neighbors above or below. The bathrooms were modern and worked well, but the water temperature was a tad inconsistent (it would fluctuate in temperature a bit).
Alessandra was a fantastic host--we were greeted promptly and warmly, and Alessandra provided us with all of the information we needed and was willing to help with anything. She communicated very well and made our stay very comfortable.
We would definitely stay here again next time we visit Naples. It is one of the best airbnb's we've ever stayed at.