Nelia's place is on the chic side, very nicely decorated with good taste (she is an architect) and has two levels with a rather narrow spiral staircase in between(which can be a problem if you have reduced movability, otherwise it adds to the artistic feeling. Downstairs (well equipped kitchen and a large comfortable bed) is actually underground, but you don't have that feeling since there is a small patio outside with daylight. I have recommended Nelia to include pictures that do better justice to the place.
The location is quiet and superb, 4 minutes from Keramikos metro station and a 12 minutes beautiful walk from Monastiraki, with a metro station on the sam line, accessing nightlife as well as cultural sites.
There were fresh fruits and more that "survival kit" and basic stuff in the kitchen. Nelia met me at the metro and is a good host.