Hlektra's apartment is a spacious and very beautiful: a huge (I think 70+ sq meters) main room, marble floors, mirrors, beautiful furniture with many personal nice touches. All was sparking clean and prepared to meet guests. It was noticeably better than we expected.
We were greeted us at building's entrance and taken to the apartment by elevator, and explained all features and where everything is located and where to buy food late, and how to get to tourist attractions. Huge balcony gave the overlook of the northern part of Athens and had chairs and table (and some plants), so we enjoyed the night view of Athens with a glass of wine. All rooms had powerful air conditioners, so we could set comfortable temperature in the whole apartment.
The area where the apartment is located is safe: we walked many times at night and only met local and typically friendly residents. We were told that there are some unsafe areas if we go further in some directions, but you won't need to go there since it takes about 10 minutes on taxi to get to most of Athens attractions and costs about 5-6 euros which was cheaper for our family than take subway/metro, and much quicker: the taxi station is located next building, and you can always get a cab immediately.
One of apartment's key features was security system and reinforced entrance door with multipoint locks: you could put protective blinds on windows and set an alarm. We felt safer leaving our possessions at the apartment than taking them with us, which was a good surprise.
Hlektra was very quick and prompt with response on our questions and gave many suggestions and tried to anticipate all our needs. It was really a pleasure to communicate with her and we would highly recommend her place to anyone planning to stay in Athens.
Thank you very much Hlektra (and to your mother)!
Igor and family