The appartment is very close to Acropolis (5 minutes away from the Acropolis metro station). And there is a tram station right in front of the appartment (2 stops to Syntagma). It's possible to walk to Syntagma Square in 15 mins and to Monastraki in 30 mins. We didn't meet Sotiris but he is always accessible and helpful. Flat is modern and very well decorated. The appartment is secure. I'd recommend anyone to stay here.