The cave is so wonderful! It gave us an exotic Santorini feeling that we have never experienced, besides being really pretty it is really cool during the days and warm in the evenings. At night you can enjoy star gazing in the terrace where I've taken amazing pictures. Although the location is not so central, it is directly connected to an ancient path with no tourists that directly take you to Prygos. This ancient path is one of the best part of our journey.
Anna is really nice and friendly. We followed most of her advices and had really great experience in Santorini. She really cared about us and we had really good communication. She picked us up, took us around the city and even drove us to the airport because of our limited time situation.