The place is surely unique! Half of it is inside a grotto and half is built. Beautiful view from the terrace. Raffaele was a hero in driving us from the station.
My complaint is about comfort. Despite three AC units the place was very hard to keep warm and dry. Everything including the bed was wet due to the humidity (there is a lot of naked rock face walls). It looks cool but the place is mouldy and there is a musty smell from some of the areas. Mould growing on some of the kitchen utensils.
Lovely location although I would consider something on the other side of the valley to be able to enjoy the sunset.