We visit Athens regularly and stay in Airbnbs frequently but didn't enjoy this place particularly poor customer service from the host's agents.
Overall the flat was spacious and in a good neighbourhood.
But some major improvements required particularly with the customer service.
The check-in lady was rude, no customer service, no greetings, no smile, she came late for the check-in, accused us for not being able to open the door then couldn't open herself.
Problem with the front door lock which meant we were worried whether we can get back in everytime we went out. They told us to buzz other flats which was inappropriate particularly we don't speak Greek.
The flat only had 1 AC in one room but the temperature in Athens was boiling 32C-36C. Out of the two, one desk fan was faulty.
The pillows were of very low quality, the second sofa bed had pet hairs. We booked for two weeks, it affected our sleep.
The second toilet water valve was leaking.
The AC control battery was dead but was told to go and buy and fix ourselves.

One of the lifts was always dirty because of works being done to a flat in the flat.
All above is easily correctable but ruined our stay and holidays.
We left a week early from the flat.