Absolutely lovely! The apartment is sitting near the Acropolis, so everything was reachable by foot: all the action of the center, the Acropolis and the surrounding area, all the museums and archaeological places are no more than 20 minutes by foot! Also, the street of the apartment was incredibly silent, you couldn't hear a single thing during the night even being so close to the center. The area has both touristic restaurants and bars as well as some other not so known and cheap places, markets, bars... It's really, really well located.
Both Vasiliki and Virginia were absolutely lovely as well and helped us with everything we needed and as gave us a very nice introduction to the apartment and the neighborhood the day we arrived :)