We would definitely recommend everybody to stay at Francisco's house. The views are stunning and the terrace is amazing. The weather during our stay was a little bit cold but I can imagine it's perfect to do your own BBQ on the terrace.
The location is very central and close to lot's of sights. You can go hiking at the nature reserve and visit the beautiful beaches. Make a day trip to Palermo or Erice. And within a few minutes you are at the local beach.