Had the most wonderful stay in this room. It was spacious, well set-up, with a functioning A/C, and desk & chair for work. Large windows. The branches and maple-leaves of the oriental planes right outside are a beautiful cross of beige, brown, and golden-green. The pigeons do their thing on the little balcony every morning (a daily comic 'parliament of fowls'), which makes for some entertainment. Although this tends to result in the balcony being somewhat unusable, I rather enjoyed watching the pigeons being pigeons from my sofa inside. The common areas were also kept clean by Hannah who comes in very often to tidy things up. She was a lovely and helpful presence during my stay. The internet worked fine for me too for the few online meetings I had.
Pangrati is the best area in Athens for me: close (but not too close) to most of the tourist destinations, the best cafes and bars nearby (4m has the best coffee in Athens, well-priced, and just 10 steps from your door; best and friendliest baristas out there too), and lots of open, public spaces (several parks; a tiered square in front of the neighboring church - Sp. Spyridon - furnished with many public benches and rosemary hedges; the Kallimarmaro stadium etc.). You can read outdoors at night too outside the church (under the lights) if that's also your thing.
Nasis was also a lovely, humorous person. (He paid for my taxi on arrival as I did not have cash on me and the driver couldn't take card payments - and did not mention anything about it until I managed to withdraw some euros to pay him back.) He was often on a deck-chair downstairs and we had a number of fun and interesting conversations - once over a bottle of home-made wine.
All in all, I'm very glad I chose to stay here. A place to return to for me.