Very cheap apartment but it is not worth. It is better to pay a little bit more for a better apartment. Sleep in the living room is very unconfortable; and the apartment is more dark than the photos show. The furnitures are very old.
It is true also that Akrivi was a very good hoster; she was worry about all the time about us, and as the coach of the living room was broken, she bought an additional bed (although very very uncorfortable).
The location is not very close to the center (imposible go walking), but there is a tram that in 10 minutes you are in Sintagma.