We stayed (a couple with 2 small dogs) at Nora's charming place for 3 nights. We loved the setting of the place being walking distance to most places and at the same time giving us a break from the busy city.
The place is comfortable and cozy. And Nora and her mum where very nice and helpful. There is a metro station about 7min walk but otherwise there are plenty of restaurant and bars about 5 min walk from the house.
Syntagma square is about 15min walk, as most centre places.
We took Uber from the airport for about 26€, which for 2 plus 2 dogs was acceptable.
If we are back in Athens we will certainly stay at Nora's.