Great place in three minutes walk from Monastiraki metro (subway) station. Nice upper floor loft in an old house in neighborhood of famous Monastiraki flea market. You can take subway directly from Athens airport + walk 4 minutes from Monastiraki station, and you will be there. Evan & Anetta are reachable 24/7, the check-in was exactly the time as agreed (although I arrived several days later due to the cancelled flight).
The apartment has a terrace, where you can sit and smoke or drink coffee, or both and overlook the panorama of Athens. The main thing for me, WiFi, was really good with speed 55 Mbph - just a joy to work online.
The feeling in the apartment is a mix from 1930's (furniture) and contemporary amenities (plasma TV). Really cosy feeling, like visiting your grandmother. I like the place, and already planning to come back here during my next work trip to Athens.
Oh, yes, and not to forget - there are not expensive places to get food (only take-away during this time) and the supermarket is like six minutes walk away. But if you want to exploer Athens, it's a perfect place as you can take a subway just walking four minutes from the place. Thank you!