I recommend an apartment for 100%!
The location is ideal, walking from the Stigmata for a few minutes. We arrived late, the owner left the keys in the box, explained in the letter where to find them, when the question arose I called him and he immediately answered.
The apartment is not noisy, a nice bathroom, lots of shampoos and shower gels, 2 hair dryers, coffee, drinking water. It was cold, but in the closet we found a heater. Also a lot of spare towels, blankets.
From the apartment is very close walk to the city center and various cafes.
If I go to Athens again, I will definitely stay in this apartment. Thanks for hospitality!