Timoklia has a wonderful place- I recommend it emphatically. It is massive and gorgeously furnished. While unable to meet me in person, she made all of the arrangements very convenient through her daughter. She was very kind and understanding regarding some delays in arrival, and overall the experience was absolutely wonderful. I came to Athens on a research trip and her workspaces made all the difference in the world.
A note on the area- plateia amerikis is on the border of kypseli, a lively and alternative area of Athens. The neighborhood is very typical of Athens today- so staying here provides a taste of the real rhythm of a complicated and interesting place. It is not a tourist area, but transportation is relatively easily located and Patission brings you almost immediately to all the major sites.