We were a group of six adults using Anna's apartment for our visit to Athens. The apartment was ideal for us. The apartment is spread over three floors. An internal elevator makes this a non-issue. The apartment has two outside ares; our visit was in the winter so we only used these on one occasion.
A grocery store is located about two blocks from the apartment. A neighborhood bar is also about two blocks from the apartment. The closest restaurant is about a 10 minute walk; it was a local's restaurant, reasonably priced; we went their twice. The closest metro is about a 10-15 minute walk. The walk to the Acropolis is also about 15 minutes.
The apartment is located on a portion of the street which is actually a set of stairs. It's about 15 stairs from the main street down to the apartment.
Communications were excellent and the host was there to meet us when we arrived.