For me, having lived in Athens, the location of Kalliopi's place is ideal ~ situated in a quiet, secluded, 'real' neighborhood quite literally a 10-15 minute walk from a multitude of centrally-located neighborhoods of interest in various directions, including the Acropolis and many tourist attractions.

Kalliopi is a conscientious, open-minded, generous and reliable host, and the apartment spotless.

I would highly recommend the apartment itself, the location of it and Kalliopi as a host to respectful people visiting Athens, and would easily stay with her myself again.