My wife and I spent a week at Luca's apartment in October. It is spacious, very quiet, and comfortable, and since it is only used for Airbnb guests, there was plenty of room to store our things. The nearby Municipio subway station made it easy to get to other parts of Naples.
There were some drawbacks, however. We found a number of minor maintenance problems, like ceiling lights that didn't work, worn floors, etc. It was hard to figure out which wall switches operated the various lights, and some did nothing at all -- labels would have helped. The two stairs between the upper and lower floors should have had handrails, since they weren't easy to climb, especially at night. Most important, the outdoor patio shown in the apartment photos was in the midst of being renovated, so it wasn't very appealing -- something we weren't told about until we got there. So while our stay at the apartment was pleasant, it was also somewhat disappointing.