After exploring serval islands in Greece, I eventually decided to stop at Athens as my stop for taking a rest then catching the early flight the next morning. However, I made the reservation at a very last minutes, and yet the apartment is ready for me & my mom. Chris was really responsive to all of our questions even we checked in at late night, he worked 24/7.
In short, the apartment has no AC, but it was fine for us since we only stayed there for few hours.
-The apartment is located not far from metro station, less than 5 minutes walk
-Avoiding dishonest taxi drivers, you should download an app “Beat”, works similarly as Uber. We learned our lesson.