Salvatore was very communicative during the period we stayed at his apartment.
The apartment is in good condition and has AC, which is a must if you visit Naples during the summer (specially August!).
The location is on Chiaia which is a nice neighborhood in Naples, where you will definitely feel safe and welcomed. There are supermarkets within a few minutes walking with everything you will need. It is a part of a guarded apartment complex - with a security guard - so you will feel safe parking your car inside (with no extra costs). The location is very close to a highway (A56) which is a great access if you are planning a day trip to Caserta / Ercolano / Pompei.
From the apartment you will be just some 10-15 minutes by foot from the Via Francesco Caracciolo, which is Naples main seaside street - very nice for evening and after dinner walking.
The apartment is located a bit further from the Centro Storico of Naples, which is ideal if you want to get away from the tourist overcrowding and "tourist traps". There are some great restaurants around, mainly attended by Italian people, with great food and very acceptable prices.
Still, you have several Bus and Metro options departing from Chiaia if you want to visit the Centrol Storico for the day. When moving inside Naples public transportation if the preferred option, because the city traffic is a bit messy all day round!
Overall, we had a great experience using Salvatore's apartment as our main base and got to knew all great sites around Naples and Vesuvio.