We stayed in Diana and Francesco's apartment for 5 nights and were very happy with everything. It is small, but nice and fine for a couple.
Although the little kitchen is hidden in a cupboard, we found everything we needed for basic cooking and storing some fresh food.
The apartment was tidy and well equipped (washing machine + detergent, drying rack, TV, good wifi, iron, effective air conditioner, lift, coffee machine and basic welcome food and drinks for breakfast).
The pleasant hosts are well-organized, reliable and the communication was good. The location of the apartment is perfect for walking to most sights in Naples and for shopping on the main shopping street (Via Toledo). It is also located near the port with connections to the ferries, ships and the Alibus to the airport. Furthermore, it is right around the corner to the Metro stations Toledo and Municipale, which connect to the central train station.
If you are sensitive to noise, you could get disturbed by the thin walls of the apartment. From time to time you can hear the neighbours speaking very clearly. Also, the elevator is right next to the bedroom and quite noisey, but we got used to that really quick and didn't mind the sounds after the second day.
All in all, we can recommend the apartment to all couples or people who want to stay in the touristic heart of Naples and discover the city by foot.