I really loved staying at Kelly's place! First off, it's a beautiful villa that's tastefully decorated and impeccably clean. But it's a quiet neighborhood while still being a 10-15 min walk to acropolis or a few minutes walk to a metro. Kelly was easily accessible and charming to boot, as well as her son and husband.
Although you share a room in the house it's like you have private quarters as the room and its bathroom are in their own quiet corner of the house.
Great little restaurants and bars toward the metro. Ask Kelly about the place with live music. Was great!
Keep in mind this is a hilly neighborhood with narrow sidewalks in various states, some with marble, rocks, and makeshift steps. It adds to its old world charm but wouldn't be great if you have disabilities. Uber's now available in Athens so you can always do that or taxi.
Athens side note: although there's a ban on indoor smoking apparently it sure ain't being enforced: almost everywhere o went people were smoking indoors with ashtrays on the table all while "no smoking" signs abounded. It felt like being in bars in the 90s!