The apartment is very nice, and located within 15 minutes or less walking distance from many of the places you would want to see in Naples.
Francesco was an amazing host! He picked us up at the airport, easily and gracefully worked around my miscommunication regarding flight times, was full of many tips and suggestions for fun things to do in southern Italy, and kept our luggage for a week while we took a motorcycle through the Amalfi coast.
I thoroughly recommend the apartment, and HIGHLY recommend Francesco.