Massimo is a fantastic host! He gives great suggestions for places to visit in and around Napoli and the best ways to do so. He went so far with his hospitality that he even took me and my friends from the airport and then took us back when we had to leave, and our flight was at 6:30 in the morning.
The apartment is well-equipped, there is everything that you need for a pleasant stay. There are also towels for each person + shower gel, shampoo, etc.
The location of the apartment is good if you want to explore the area (Amalfi coast, Pompeii, Capri Island), as it is close to Garibaldi train station and also to the bus and ferry terminals from where one can go to Amalfi coast and Capri.
Right underneath the apartment there is a great pizza place (Oliva) which serves traditional Napoli pizza at a pretty low price.
All in all a great place to stay and a great experience! 100% recommended!