Apartment is perfect for a couple. it is well located (close to supermarkets, Metro, Bus and Tram stations). Be aware that Athens is like being in a hill, goes up and down, so even to access the Building of this apartment you need to climb like 40 steps which can be an issue if you have heavy luggage.
The apartment was clean, had all the main appliances, kitchen and bathroom very well equipped, heating, hot water, internet, everything functioning properly and the bed mattress was very very comfortable.
The only downside (for me) was the fact that the duvet and pillow cases were clean but wrinkled.