My wife and I stayed at Lilly's apartment for 3 nights in late September and thoroughly enjoyed ourselves. It was very spacious and had everything we needed...we especially liked sitting on the good sized balcony as well as the rooftop looking directly at the Acropolis (gret view day or night!)! Wifi worked well. The apartment is literally 5 minutes from the Acropolis directly up to the end of the street. The supermarket (not a "mini-market") was a 5 minute walk from the apartment and had everything you might need. The apartment was very clean and could accommodate a family comfortably (especially with 2nd bedroom and 2nd WC).
The neighbourhood was nice and safe and close to the "Fix" metro stop for getting around. It is walkable to most of the sights in Athens also. We walked home each night when out and had no issues or concerns.
Lilly was excellent at communicating before and during our stay and was very quick to respond to any inquiry we had. We would definitely recommend staying here and we would do so if/when we return to Athens!
Thanks again Lilly!