Staying in Yana and Boris' flat was OK. The first night was cold but when the heater was on everything was great. This winter in Greece is really cold so it's forgivable :) We spend such nice week in Athens sleeping a few minutes from Acropolis and close to other ancient buildings. There is close to metro station, markets, bakery and some coffees. The area is peaceful, cozy and silent. Yana and Boris weren't in Athens during our stay but their friend Dionisiy was really helpful (he took us from airport and helped with some small problems with electricity). Me and my friends can frankly recommend staying in Yana and Boris' flat :)