Kay was a superstar: patient when our arrival was delayed, very responsive to all our annoying questions, and great from the start at recommending places to eat etc.
The flat itself is lovely and spacious; it was quiet, too. There's a little playground around one corner and a little square around the other, with quite a few options for eating (Greek / Italian / fish) and many for drinking and/or shisha.
We found it a great, excellent-value base from which to get into and around Athens (we recommend Moon Energy Parking if you want a secure, cheap place to park; although the street is available, too, except on Wednesdays when there's a market).