We had a marvelous time in Naples. The apartment is nicely located for a home base to explore the city, and then take a train to pompeii etc...
The neighborhood didnt seem sketchier than the rest of naples to us. If anything it's newer construction with wider streets, but I suppose these sorts of things are subjective. I couldnt help but wonder if some of the reviews I read might unfortunately be reacting less to the neighborhood's architecture than they were to the complection of some of its residents.
The flat itself has more of a dormotory feel than a hotel or private residence ambiance. I feel like the other reviews concerning the flats cleanliness and state of repair were probably fair. The showers in particular could use a good bleaching. If you're looking for an anticepticly clean, or romantic b&b with guests to talk to and an onsite host, this isnt that, but if you have a large party of 5-10 young adults, this place is ideal (two bathrooms ladies!)
For his part Francesco was every bit as awesome as the other reviewers attest, graciously taking us on at the last minute, meeting us at the train station and taking the time to go over a map with us. Like I said, we had a lovely time!