Sofiana made us feel like a guests in her apartments. The apartment has everything you need for a ling stay - shower, iron, washing machine, stove for cooking and etc... I traveled with my husband and 10 mo old, our baby slept with us. Though bed isn't huge ( the size is b/w queen and twin) we slept comfortably. The location is not exactly in touristy part, but it is in walking distance to everything (and we didn't have a stroller for baby!) . On one side of the house are first stadium of modern Olympic games, national park, Syntagma . Other -plaka, The Acropolis. In the middle - temple of Zeus and Hadrian Arch. Very close - we didn't use public transport (though stops are close by as well) for once in three full days we had in Athens.
I would stay there my next trip in Athens
PS Also Sofiana gave us a quick tour of vicinities to get us oriented, she is extremely welcoming host!