Fernando is the best host. He and his flatmate were very nice and friendly, they made my stay at the apartment an enjoyable experience.
The apartment is super clean and tastefully decorated, the room is large and comfortable without street noise despite the location.
The location is superb - a step from the best coffee and food shops Napoli has to offer, and right next to the Royal Palace and Plebiscito. It is within walking distance from the old city, the Spanish Quarter, the University area, the port, the seafront and Chiaia, and a short funicular ride to Vomero.
Staying at this place allowed me to meet wonderful Neapolitan people and get a glimpse of what real Napoli is like.
I highly recommend this place.