We spent two weeks in January in Mario's first floor apartment which is close [15 minutes walk] to the pedestrian streets of Palermo. Mario welcomed us at the house with some wine and a lovely selection of appetizers from his mother; an amazing welcoming spread. Mario was very quick to respond and come and fix an issue we had with the internet -- he was there there within half an hour and on the case to fix the problem. The apartment has a lot of space, with a separate living room as well as the kitchen-dining room. In the week, during the day, the building has a concierge who was very friendly.