Agis is a responsive host who answers my queries quickly and provided a very comprehensive guide to places to eat and things to do in Athens, with the web links. His place is located centrally and within 5 minutes walk to the nearest train station, and 2 stops from Acropolis. The apartment is clean and modern looking and can fit in 5 people quite comfortably. There is heating in each room and also in the living room. Highly recommendable for your stay in Athens.