I spent a month staying in Naples at Diana and Francesco's place and ---I can give the best review of all: If I'm ever fortunate to visit Naples again, I would look up Diana and Francesco first thing. The apartment was clean, in a quiet, safe area yet close to everything I needed: Museums, castles, palaces, the metro and bus routes.. the magnificent bay and loads of shopping. I spent a lot of time in Spaccanapoli -- so many things to discover !! And I'm a "beyond" middle-age woman traveling alone.
The cooking area is small but I wasn't planning a holiday meal ! And having a washing machine was a must.
Enjoy Napoli...