We were greeted with great sympathy by Roberto, who manages Laura's apartment. The apartment looks better than in the photos and everything works well (air conditioning, radiators, hot water and internet are fully efficient). The apartment is located 100 meters from "Materdei Metro station" and therefore it is very easy to get to the historic center ("Piazza Dante Metro Station" in 4 minutes), but it is also easy to walk to the historic center as the distanze is only 1,5 km and on foot it takes about 15 minutes.
I will return to Naples soon and will definitely book the same apartment.