Great location, close to everything. Very well distributed and clean apartment, feels cozier that on photos ;) with a big nice terrace to enjoy your morning coffee under the sun or an evening glass of wine, plus it has everything needed for your stay: hair-dryer, towels, and even bath robes, kitchen ware, umbrellas to borrow in case it rains.
The check-in went smooth though I think there is no bell to ring downstairs, so you’d better be in contact with the host. In our case, the charming neighbor lady let us in, and then upstairs we meet the host.
Be careful with opening the last door (there are 3 in total) to enter the apartment, as the lock pretty sensible. Ask the host to show you how to open the door with the key to avoid emergencies.
And well, enjoy Napoli!