I never met Denitsa but met her mother, who was friendly in a quiet way. They have a great rooftop where you can hang out alone and see a lit-up side of the Acropolis mtn. And the flat is roomy - you're on the 2nd flr, they're below. As for location, everything is pretty close in Athens, but this is a particularly good spot if you'd like to be near the sights. This is prob a good place for groups - that'd make the price more palatable. Ovrl: a good booking.