This is exactly the kind of place we wanted in Naples. Great location, good value. A typical Napoli apartment, the building is certainly old and in disrepair, but the apartment itself is modern and clean. The space is comfortable, relatively large with a loft for the bed, a kitchen and a small balcony. It's right off of Via Tribunali, a busy street with shops and restaurants.
Fabio communicates well and let us drop off our bags early and keep them in the apartment for a few hours after check-out. Keep in mind the apartment has no AC, which was challenging during the Napoli summer days.
I would recommend this if you want your own place in the heart of Naples for a low price. If you are willing to spend more and are not comfortable with the lack of AC, maybe find a hotel room.