Kostantinos´s place was very comfortable, and in a prime area, the ano poli. Ask him for food recommendations- he is a foodie and has great ones. He also was indispensable for me in planning my next leg of travel in that he took at least 90 minutes of his time to discuss travel/history/culture, and even sat down with me to help plan. Totally available and communicative. Cannot recommend either he or his place more.