We had a wondeful stay at Zaira's appartment. It's so cute, with everything you need + an amazing terrasse were you can hear no other noise than the birds singing. It's quiet and fresh, the wifi works perfectly and it is close (walking distance) to all historical sites of Athens (including the Acropolis). It's in a really nice and authentic area, while being close to all touristic areas. Definitely recommend it, especially as Zaira is a very nice host, always responsive.