I was in Athens for work with two colleagues of mine. We work in tourism therefore didn't need many info and we picked the apartment for the perfect location.
The apartment is in the very city centre, very clean and spacious and with all the comforts that we needed. Only negative point is that one of the rooms downstairs was very very noisy and the person that picked that room was almost not able to sleep at all. I was in the room upstairs and despite of a bit of noise I can't complaint but both my coelleagues made a point saying that I should have written about the noise in the evaluation of the apartment.
Shame as the apartment is really good and the host is very nice and willing to help!