We met Antonio's parents, they were incredibly nice! Because we arrived at night and didn't have any food with us, they helped us with some pasta and wine.
The house is very charming and has a big garden where it's pleasant to sit around sunset. We liked the fact that it was not in Cefalu itself, away from the crowded city and tourists.
It is located high on a mountain and the climb can be quite heavy at night, so make sure you arrive not too late, when it's still sunlight.