Gorgeous spot right on the Oia cliffs overlooking the caldera—you can watch sunset from the front porch. Their concierge, Mary, was amazing, answering all my questions (I had a lot of them) and arranging activities upon my request. Booking through concierge is a tad bit more expensive than doing it on your own but worth it for the convenience. Overall very unique and lovely stay.
Note that the place doesn't have AC, just fans.