We stayed 3 nights at Zoi's place in Athens and would highly recommend staying here. In the heart of Plaka it is minutes away from markets, restaurants, train station, Acropolis and many other historical sights.
The apartment was very spacious, air-conditioner worked well, there's a small washing machine, kitchen amenities so you can cook meals if needed and lift in the building.
There were many restaurant and sight-seeing recommendations in the apartment- very helpful. I would recommend staying here as it's a great location and a very comfortable space.