Elias is a wonderful host. He was responsive to email requests and once we arrived he was readily available for questions and assistance. Ersi Villas is centrally located in Firostefani and a quick walk to Fira. The room was clean and comfortable for two people. We had breakfast twice at Ersi and it met our expectations. It's homemade and there is a variety of options for everyone. The only negative is that you have to walk up steep steps to get to the main area. If you have mobility issues, this location is not ideal for you. If you don't have any problems then this is the perfect location for you. Also, it does not have a caldera view but most rooms have an ocean view. Very pretty in the early morning and evening. I would recommend Ersi Villas to anyone visiting Santorini.