Alexandra's apartment is very nice, located in a neighborhood close to Acropolis but not in the main touristic area; this was great for us, as we got to experience a more authentic part of Athens, with local charm. Around the corner from Alexandra's place, you'll find a pedestrian area full of hip and nice pubs, cafes and restaurants. Metro station (two stops to Syntagma square) is a few minutes walk, but you can also get to the touristic areas by foot (around 10 min. walk to Acropolis area).
The apartment itself is cozy, comfortable, having all that you need for a relaxing stay. The parking included was big plus for us, having traveled by car to Athens.
Communication with Alexandra and her husband was very good, would recommend this place if you're coming to Athens.