My family (4 adults) had the opportunity to stay at Rich's place in late December. The apartment was spacious, location walkable to everything we wanted to see in Athens. The metro was very close, making the transition to and from the airport very efficient. Rich was a great host providing checkin instructions and answering my questions - communication with him was flawless.
I could not has asked for a better host or location, we thoroughly enjoyed our time in Athens. We walked everywhere and only took the metro to and from the Airport. Yes we could have chosen to take the metro a couple times - it was certainly simple enough! But why ride when you can walk and walking got us there in less time.
If you are looking to go to Athens and see the sights, this place comes highly recommended.