Antonia and her family are hosts in the original acceptation of the word. They are thoughtful, sacrificing and think of the most minute details to make your stay as comfortable as possible. Antonia lives upstairs from her pleasant, modern-looking one-bedroom. So besides being available through email and phone, she is also above you if something urgent happens. She greets you with treats in the fridge, like local fruits, juices and cookies. She has prepared a brochure with info on restaurants close by, supermarkets and schedule and prices of tourist attractions. Despite all the available attention, she is also very discreet and will give the space you need to enjoy your stay privately.
Her apartment was the best cost-benefit offer I found in Athens. 5 min walk from Theisio station and 5 min from the bustling Adrianou street, full of bars and restaurants. The apartment is also close to the Hephaestus Temple, Old Agora and Plaka district (8 min by foot). Apartment is truly charming, well kept, clean. I felt like I was in a Bed and Breakfast. Price is unbeatable. The best feature of Antonia's though is the humanness of how she treats her guests, which, coupling with her professionalism, is a rare find.
Antonia has my highest recommendation.