The apartment is great - exactly as described and pictured. It is located in the historical centre up a quiet street, but close to one of the piazzas (where there are shops and places to eat/ drink etc) and the main pedestrianised street (v. Atenea) where people walk in the evening.
The hosts are friendly and helpful, so I recommend staying here if you're looking for a place of your own a ten minute walk away from the buses to the Valley of Temples!