Ilias and Danae are excellent hosts, and their apartment is well-equipped, very comfortable and on a quiet, shady street. It is also in a perfect location to explore all the main attractions in central Athens by foot, and anything you might need for your stay is within a short walking distance.
Communication with Danae was very easy, and she was extremely responsive to all of our questions leading up to and during our stay. I recommend taking a look at the guidebook Ilias and Danae have put together, because the one restaurant we were able to visit was fantastic (Mani Mani). The bakery around the corner from the apartment is also a must-visit, but note that it is closed on Sundays (much to our disappointment!)
Our only regret was that our stay could not be longer! Athens has so many wonderful nooks and crannies to explore along with the layers and layers of history. Our few days only allowed us to scratch the surface.
We hope to make it back in the future - and book the apartment again.