We had a great stay in this excellent apartment in a very nice area of Athens. You can walk to the major site such as the acropolis on the nice side of town away from the tourist shops, and the apartment is on the metro line that goes both to the airport and the port of Piraeus. There are some great cafes, bars and restaraunts just steps from the apartment and I personally find Psiri one of the best areas for a layover in Athens.
The apartment was very large for two people with a full size kitchen, full size bathroom and lounge/coffee table and very large bed. It also had a great balcony for a drink in the evening.