Great apartment, very spacious and clean. The location is amazing, right next to the acropolis and close to the busy center of Athens. For breakfast, you can go right downstairs and grab something from one of the cafes and have it on the balcony with the amazing view. And from there you can visit all the main sites of downtown Athens by foot.
Panos himself is an awesome host. He stayed very late after 1AM to greet us and remained available throughout our stay to provide us some very valuable information.