Unfortunatley we could not reach Mario before we arrived, so we did not quite know how to get into the flat. Apparently they did not really know that we were coming. Fortunately a lovely lady next door helped us and after half an hour we got into the airbnb. Afterwards everything was great and exactly as described. We did not mind the apartment being on the ground floor at all. As some have mentioned it is not the most quiet place, but we did not mind, after we knew it was a lively neighbourhood, that was what we wanted. Perfect for a short stay in Napoli!