I can't say enough good things about Georgina and the studio I rented. She was great, on time, easy to communicate with and responsive. Had good recommendations for places to eat in the area and any other necessities (needed a European charger for my phone and she pointed me in the right direction).
The studio was modern, super clean and the location is honestly hard to beat - right next to the metro from the airport, within walking distance of the neighborhoods of Monastiraki and Plaka and all of the ancient attractions.