I stayed in the girls' house with my boyfriend for 3 nights. It was a great experience!
The place is spacious, very cute and with everything one needs at home. We felt very comfortable in the house.
The location is perfect. Plaka and Anafiotika are the most beautiful and safe neighborhoods in athens and we were right in its most central street! We woke up with the Parthenon as our view and right in the middle of everything.
The girls had prepared a little booklet with all the information needed to know for the house and a list of nice restaurants and cafés in the area. If I could personally add something myself; have breakfast at "Yasemil and lunch at "Klepsidra".
Lastly, I believe we ended up in athens on the coldest days of the year. The house remained warm!
I would not only go back there, but even consider living there. Definitely recommend!