We really liked this place, with a few caveats:
We were in Apt 2. Cute, vintage. Bed comfortable. Shower hot and strong (though only handheld). Everything is very clean. Balcony is small but wraps around the small apartment and has two different sides to it, each with small table and chairs. It is in an excellent, central location. Close walk (even with luggage) to multiple Metro lines, especially Monastriaki. Close walk to restaurants, Athens attractions like Ancient Agora, the Acropolis and the Aereopagus Hill, the Roman Forum. We walked everywhere except for the day we walked to a car rental place for a day trip outside Athens -- to Ancient Corinth and Cenchrae. Cleaning on alternating days, w towel changes.
Caveats: *Noise: VERY close to the Little Kook pseudo-Alice in Wonderland themed restaurant, which is loud at times but at least closes at midnight. *Other street noises like flour sack delivery for the bakery across the street take place at night too...not a big problem for me, but my spouse is a very light sleeper. He still liked being there but slept poorly most nights. *Small repairs to door handles (we did ourselves) or squeaky hinges (hosts showed up very quickly) etc, may be needed. Internet stopped at one long point but they kept working on it until it got fully restored. Hosts and cleaner very responsive. *Kitchen only has hotplate as stove. Water kettle, fridge, cups, glasses. We fixed our own breakfast or sandwiches fine, but ate real meals out.