The location of the apartment is perfect for solo travelers, couples or friends for a short stay in Napoli. Almost everything you need (restaurants, bars, shopping streets, ferry port, train station, ...) is within max 15 minutes walking distance.
The apartment is located in a lively neighbourhood. However, since it is located in a closed courtyard you will not hear any noise from the street. But the walls are thin so you might hear your neighbours. The balcony surely does not have much view from it other than the building wall opposite to it, but it was nice to sit there for breakfast or to relax with a drink after a busy day.
The only negative thing was the cleanliness of the equipments (coffee maker and washing machine) but that should be easy to fix.
The host was friendly and helpful.
I would stay there again, good value and a great location.