We stayed 7 nights at Casa Overview. Our hosts Pio and Diego are kind and accommodating. The flat is in the middle of the historic center of Naples. As it is in the backyard it is very quiet and you've the feel the city was sleeping - but only until you step outside and enter the street. As it was a bit difficult to cook Pasta at home, I recommend to Pio and Diego to provide a big pot and other useful kitchen helpers.
anyways we are very happy about our stay.