We had a wonderful stay with Alex. She made us feel very welcome, and provided us with maps and books of Santorini. She has a modern spacious cave house for her guests. There is also a private area outside to sit and enjoy the sun.
Alex was very quick to respond to any of our needs. We felt very comfortable and at home staying at Alex's. Finikia is a quite, town not full of tourists. We felt like locals living there.
I would certainly recommend this as a great place to stay.