I traveled to Athens with my boyfriend, the appartement is very well located in Gazi Neighborhood, very dynamic and young neighborhood, only one metro station from the Acropolis.
Very easy coming from the airport, no change of line or taxi needed, straight to the appartement in 45 minutes !
Kostas and his friend Peter made sure everything was alright and were very available and quick to answer our questions. Peter gave us nice adresses to visit, restaurants and museums, and was very thoughtful.
The appartement was beyond clean, well decorated and the bed was very comfortable.
The hot tub takes some time to heat up, so you will have to be patient and prepare it in advance. Also, the gym was under renovation when we stayed there so we could not use it.
Overall it is a really nice and enjoyable place to stay.