This was our first time using airbnb and after staying at Ernesto and Tiziana's place, i can say so far so good. the advertising of their place is spot on. It is a short walk into the center of the city, It has all the amenities and more that you would expect and we felt very much at home.
We also had a car and found parking on the street right outside the apartment was easy enough to find without having to pay for parking. We stayed for three nights and used it as a base to visit Etna, Catania and Syracuse and this worked out perfectly.