My husband and I had a great stay, and Massimo and his wife Patrizia were amazing hosts. They we clear and communicative, with great suggestions for food and drink, and checked in on how we were doing. They also booked us a taxi to the airport at a discounted rate.
The apartment itself is on the top floor of an apartment (it has an elevator--bonus points for not having to walk up five flights!), and the windows are skylights and let in loads of natural light. The bath is a nice bathtub, but if you are a shower person, know that you will be taking a sit-down shower. That said, the hot water is plentiful and there is strong water pressure. The beds are comfortable, and the kitchen has the necessary basics. There is a grocery store around the corner, and of course fresh fruit and veg stands a few blocks away. The apartment is an easy walk from shopping, restaurants, and tourist attractions--about 15 to 20 minutes from most things.
Even though there were torrential downpours when we visited Naples, we still had a great time and will certainly stay again.