Check in and communication with Luigi was very smooth and easy. He even helped us arrange some luggage storage with his building manager due to an early arrival to Naples. The apartment itself is spacious and comfortable in a location close to the train station and within walking distance of other spots in the city. There is also a big super market right behind the building which is very convenient.
The neighborhood around the train station was a bit sketchy at night so be aware of your belongings and presence. The apartment bathroom was also not great, a bit dirty and smelly, which is unfortunate because otherwise it really is a great spot.