Ideally located for new arrivals to Napoli, Mariapia's place was just right to begin our tour of Campania and the South. The room was basic - which is what we wanted - clean, and well prepared. The bathroom was sparkingly clean and neat, although a few paces down a hallway.
Insofar as this place was on Piazza Garibaldi, it was ideal for airport, rail and hundreds of bus connections, as well as car hire/rental centres. This also means that you're in the middle of a 24/7 district - lots of traffic noise at all hours of the day.
Finally Mariapia was a fantastically helpful and considerate host.
I highly recommend this place with the proviso that you are smack bang in the middle of a buzzing and edgy metropolis.