Panagiota's place is one of our favourite Airbnbs that we have vet stayed at.
The house itself was absolutely stunning an positioned right in the middle of Athens markets. Amazing restaurants only metres away, and the Acropolis and other main sights are all within a 10 minute walk. I you don't feel like seeing them up close, her roof terrace is perfect for chilling out on, and you can see them all from up there instead.
Highly recommended, and we will definitely try to stay here if we return to Athens.