As others have mentioned, the apartment isn't located in the most central, nicest part of Athens, but is a ~20 min walk or a quick (and cheap) taxi will do the job!
The Airbnb is well-used and seems to have hosted many travelers. There is some slight damage (water stains on a few walls, bathroom door off kilter) from previous guests, but all around a nice apartment that had everything we needed for our stay!