Our stay at Katerina's beautiful apartment was great. The apartment felt truly like home because of its cozy setup and it was fully furnished and clean, so all our needs were met. Wifi was a bit slow, but we got by alright. The neighborhood has many nice restaurants as well and it's walking distance from all the major tourist attractions. There are a few convenience stores around, but the supermarkets are further.
Katerina was very responsive to all our queries, though she couldn't meet us in person. Her sister picked us up at the metro station near home and we thought that was really nice of her. Overall, I highly recommend Katerina as a host and her apartment as a homey base to explore the great city of Athens.