Demetris's place is a great modern and functional apartment located in a quiet area of Gazi and steps away from great restaurants, night life, a metro sation. You also have a quite decent food store ( AB ) 9 minutes walking. Some of the great touristic areas are also walkable, 20-30 minutes.
Demitris and his co-host have been absolutely great.
We highly recommend this place and hope to stay there again during future visits to Athens.