I've had a lovely stay at Kelly's studio apartment in Athens. I never got to meet Kelly because the check-in was through a key lock, but she was always very responsive and accurate in her communication. The apartment is not located in the center but still very easily accessible by public transport. Some of the best amenities in my opinion were the spacious shower, fully equipped (and modern) kitchen, and comfortable bed. I would definitely stay at Kelly's place again if I ever were to come back to Athens!