Great experience overall. I was in Athens for a congress and i could have stayed in a 4-star hotel in syntagma square, as many of my colleagues did. But by comparing the 4-star hotel room, and toni's apartment, there was every reason to choose the latter. The only downside, the lack of a bigger garbage bin in the appartment, and also around the area.
P.S. Great feeling of security in the area and in the building.