We were a group of 16 (three families) staying at the Baglio del Grillo late October. It is a great retreat, away from the busy touristy areas of the island, however only 40 min drive to Palermo. All relevant daily shopping, restaurants etc. is only a few minutes drive away.
The house is a historic mansion from the family in its 7th generation. Hence you will feel like spending the time at your country home in the middle of old and beautiful palm and lemon trees, The house is well kept and surveyed by the parents of Cesare. There is lots of space in the house and can easily fit such a large group as ours (with plenty of kids).
Cesare was very caring and had a hand full to organize during our stay. He even organized a lovely original Sicilian dinner (cooked by his mother) and a singer / piano combo for the 40th birthday of one of our group members.
Thanks again for your hospitality, Cesare!