Maria is a really outstanding host. It's really exceptional if you are able to meet people like her.
On our arrival she made us feel very welcome in not only taking her time to show us the apartment (much bigger as expected!), the courtyard and amenities (2x airco), but also to take a tour around the block and show us places of interest like the mini-market and bakery and the wide choice of restaurants you have (definitely try Mavro Provato!).
She also took time to ask for our interests and did some research (on as different subjects as Maria Callas and bubble wrap!) as well to help us make our stay in Athens as fantastic as could be.
The apartment is near the Olympic stadium in a quiet neighbourhood and in walking distance of every major site or museum.
We hope we can return soon to this place, but will not hesitate to recommend it to our family & friends!