Location location location. You walk to all main archeological sites within 5-7 minutes. The hosts, especially Giannis and Lilly were fenomenal. I didn't really spend much time with Mimis the landlord. Rooms and bathrooms were very clean. The upper level bathroom was quite spacious and comfortable. The lower level rooms are very small and old and are separated from each other by an old door that's locked. Obviously there isn't much privacy between those two rooms. The noise coming from the street (motorcycles, barking dogs, and drunken people) will make it difficult for you to sleep, at least in the aforementioned rooms. If you are a light sleeper, elder, or anybody else, I recommend against taking the first two rooms as you may not get much of a sleep there, if any at all. That's due to both the location of the apartment and the poor insulation of the windows and floors. And, actually, to the mores of Athenians too. But if you only have a day or two in Athens, this would be a great choice to explore everything around the historical center. And the hosts are really really nice too.