We were very cordially welcomed by Daniella who gave us excellent tipps for the region.
The place: it was like described and exactly what I've searched for:
a lonely house, nicely equipped, on a beautiful piece of land with a stunning view over the sea.
If you search for privacy and remoteness this is absolut reccomendable.

You need a car to get to Cefalú or you like walking long distances though; the little road up to the main street from the house is a bit tricky especially when wet.

I definetely recommend this place.