Mariapia an her sister were so lovely and friendly, both are very nice, same as the neighbors, also respectful and funny, they made me feel welcomed. The communication was good, answered messages fast. The room is small, exactly what I needed for 1 night. It is 5 minutes walking distance to Garibaldi metro and bus station, which makes it easy to move around, specially to go to the airport by bus early in the morning.
Unfortunately I couldn't sleep well because the traffic in Napoli is crazy and they horn all the time for anything, that it's normal, but nothing to do with the place. I recommend staying at Mariapia's place.