We were with 3 friends and we enjoyed staying in this apartment because we had 3 seperate bedrooms and a very good location in the historic centre with everything nearby. There was some streetnoice during the evening/night and you hear sometimes the airplanes. So it is not a very quiet place. But if your in the middle of the city you can not expect it to be quiet. Naples is very alive!
We were very well received by Mario, communication with him was perfect.
We would highly recommend this place for a very good stay in Napels.