This is the perfect place to stay in Naples. Spacious, calm and quiet; tall ceilings, cool colours; only recently completed, so it looks very new and uncluttered. Well equiped. Ideal for two couples, or any fewer, especially for a longer stay.
It's right on the edge of the historic city, but not in it, so the location is ideal for walking everywhere; also, near a metro station, for longer trips to Pompeii, Herculanium etc. And not far from the hydrofoils and ferries for the islands. There's a friendly corner shop next door, a supermarket not far away, and a choice of restaurants, pizzerias etc.
Giulia is a brilliant host. She was there to meet me, and had even left a bottle of prosecco in the fridge. It is a great help that she speaks fluent English, and works next door, so could be available in an emergency!