We stayed @ vivi's house in August. It was more convenient than we think.. near to supermarket, a walk away from the caldera and motorbike rental is just beside in case we you needed one to go around. She picked us up from the airport which was very nice of her. Left some sweets, fruits and wine for us:) Her apartment was very clean, everything worked well. It's in the center of Fira but in the quite street so we had undisturbed sleep. We'll book again with Vivi if ever we'll
come back to santorini.