Me and the family (brother and parents) enjoyed our stay greatly! The appartment is fully furnished, has airco, towels are provided, you get a nice bread and spreadables when you arrive (the supermarkets we're closed when we arrived, so that was a lifesaved) and Christina personally welcomed us and gave us tips and information about Athens and the surrounding areas and what to see and do. The beds are comfortable and the kitchen is wonderful to cook in. The location is great as it's a 5-10 min walk to Omonia Square, which is where the metro is located. The appartment has a great view over the former university building and you can see a little bit of the national archeological museum (which is like 2 minutes walking distance). There are busstops around the corner and a supermarket in 5-10 minutes walking distance along with all kinds of shops and restaurants.
We would definitely recommend staying here as the appartment is wonderfull and Christina is a great host who was very responsive during our entire stay!