Pina's apartment is very well located, with a 2 minutes walking distance from the historic centre of Naples. It is also very close from the harbour, and from Garibaldi Central Station (15 minutes walking), where you can rent a car, take the train to Pompéi, or take the bus to the airport.
The apartment is perfect for a couple (only one big room, with the bed located on a mezzanine). The window overlooks the roof of a church, which is super nice. It was clean, and in accordance with the pictures.
Arrival and departure were very smooth, as Pina had sent clear instructions for the check-in a few days before our arrival (map to find the building, location of the keys, wifi details, etc...).
She was very reactive when we had problems to make the fan work, and problem was solved in a couple of hours.

Only one small inconvenient: although there is a fan, the apartment is quite hot in the summer.