Toni is a very friendly and helpful host; "napoletano DOC", he knows how to help you with usefull advice on the city.
His apartment is as lively as a hostel, but very clean and well-kept; the room where I slept was for three people, but with an organization of spaces that guaranteed privacy and tranquility almost as much as a single room.
The location is excellent: in a good building in the characteristic "Quartieri spagnoli", close to everything you could look for in Napoli.