You will be staying at the perfect area. Do not bw fooled by the graffiti. The area, and the people are fantastic! Drink spots, food spots, and shopping spots are there. Walkong distance from anything artistic that naples has to offer. The harbour area is fantastic. Walking distance from Catacomb place. And, walking distance from the train that goes to...ruins of pompeii!!!
Quick tip for my fellow tourists...make sure there is a trash bag at flat; make sure host tells you how to open the door, and, host might have family meet you to bring you to flat, and, uber does not go to airport. You can take shuttle bus to city center, which is walking distance from flat.
Ultimately, the stay is worth it!!! Because, of the area you stay in. Cheers!