Very lovely place! When we arrived in Athens we were a bit shocked about all the noises and cars, but as soon as we arrived in the street of the airbnb it was heaven. Very quiet. And the place is so cozy! My guess is that someone local lives there at some in the year, that means the kitchen is very well equipped and the place is furnished and decorated to live in permanently.
Check-in via self-checkin with a door keybox was super easy and convenient.
You are in walking distance to a lovely area with restaurants and bars and can walk to the Acropolis within 15 minutes. There is a big supermarket also in about 10 minutes walking distance.
Only tiny thing that could be troublesome was: you can hear your neighbours pretty well. Especially upstairs it sounded like they move furniture around a lot and the lady had a loud telefone conversation every evening. And when someone turned on the water, there was a weird loud squeaky noise every time. Also there were dogs barking in the house stairwell early in the morning everyday. But I don't think the host can do much about that. So basically, just bring earplugs and you will be fine.
There are shutters that make the room pitch dark if you want to (which I love, but you can change the degree of darkness youself - so don't worry if you don't like it that dark).
Also the balcony is bigger than it looks, you can fit 2 parisian style chairs and a small table there. It stretches over the whole side of the flat. So you can definitely have a coffee or evening drink.