Very nice place, and excellent value for money.
Self check-in was easy, highly recommended during these times. Apartment was large, and minimalistic. Very clean, and modern looking. Bedroom was large, and bathroom functional and nicely fit out. My bed was unfortunately not comfortable, but everyone is different, as I'm sure are the beds in each room. Note there is no washing machine or microwave (didn't miss it), and just enough utensils/crockery. Large fridge, and a couple of complimentary large bottles of water. Aircon/heater in living room and bedroom. Fairly large sofa, and average size TV. Lift in the building, servicing a few apartments per floor, made you feel safe.
Communication with the hosts/staff was super easy, responsive, and friendly. Michaela was always available (thank you).
Well located, within walking distance of key Athens sights. Grocery store within 100m of the apartment block.
15-20 min walk to Filopappou Hill, another 10 to the Acropolis (although the latter was closed Jan 2021, thanks to covid).
Nice coffee shop / eatery at the end of the street (Mikels), a decent hot dog stand 100m from that (nothing was open except that stall, however I went back)
All in all I enjoyed my stay and wouldn't hesitate to stay again.