Panos's flat was fantastic - as others have said in their reviews, the photos really don't do justice to the incredible view of the Acropolis - it is right there in front of you, and the balcony overlooking it is such a nice place to have coffee in the morning or a drink in the evening. It also means that all the major sights in Athens are in your doorstep - just a few minutes' walk to everything, with loads of restaurants and shops just downstairs, and the metro station across the street in case your want to go anywhere further afield.
The flat has everything we needed - fast WiFi, aircon, dishwasher, washing machine, coffee maker, etc etc. Beds were comfortable and showers were great. There's loads of space - we were two adults and two kids and it was more than adequate.
Panos was super helpful and gave us lots of great suggestions for things to do and see in Athens. He always responded quickly to messages and check-in and check out were easy.
I can't recommend this place highly enough, if only for the view (although everything else was fantastic, too)! I'd definitely stay here again and would recommend it in a heartbeat.