We were a group of 7 and spent 8 days in Sicily: Palermo, Acireale and Forza D'Agro. This was by far the best house. Extremely clean and very nice and responsive owners. The house has a lot of space, on vertical: 4 levels, 5 rooms, 3 bathrooms. Not suitable for persons with handicaps or very small children, due to the way the house is constructed, on vertical, with narrow stairs.
It can easily fit a large group of 10-12. The location is on a top of a mountain. From the balcony of the top level you can see a spectacular view. A car is needed to be able to move around easily. We loved the stay in the house and would definitely come back. Better than a 5 star hotel.