We stayed at Stella and Nikos place for 3 nights. Even before the trip Stella was amazing in communication regarding how to get there. She helped us setting up a taxi both for pick up and drop off from and to ATH airport. This was extremely helpful traveling with two kids, took all the worry about of the journey.
Apartment's location is perfect at Plaka. Everything is walking distance. We enjoyed the place like locals. Apartment is cozy and functional, and both our girls had their own futtons. The balcony was the focus area of the house and my wife and I spent long hours in the morning and evening lounging there. Highly recommend the place!