I just got back to the USA from my trip to Athens to run the "Authentic Marathon" and I have to tell you that staying at Stavros's place was definitely the place to stay. Close to the Metro station (six minute walk). Close to the tram, and if you don't mind a 15 minute walk you can be at the Acropolis/Parthenon and the historical sights in Athens. Stavros picked me up at the Metro Station and took me to the apartment which was awesome because, well, everything was in Greek when I got off the subway... :) Stavros was a very helpful host and replied immediately to e-mails on the Air BNB site.
I highly recommend this place if you're visiting Athens and if I ever get back there again I'll definitely be staying here again.
Thanks Stavros!!! You're the best!!