If you're looking for a simple, affordable, place to stay in the centre of Athens (and you're planning to spend most of your time outside your Airbnb), it's. a perfect place.
When I booked this place I didn't realize that the bathroom and showers are combined (your shower is next to the toilet seat). And that the bathroom is outside the apartment (in the hall next to the elevators).
Even though the bathroom was every time very clean, it's more the idea that you're showing in the toilet that made me wish I brought flip-flops.
Inside the apartment or in the room, there is no access to water. The room is very basic, don't expect anything cosy or stylish. I've advised the owner to put a bedlamp in the room, as the only light in the room is a fluorescent lamp on the ceiling. Not ideal when you're laying in bed and you would like to read a book or so.
The blanket is very thin, but there is heating via the air conditioner. It's all very clean and even though you're staying with people you don't know, there is a lot of privacy and I felt very safe. (every door has its own lock).
During the week there is a market in front of the door. Also very friendly people (and I expected that the set up of the market would wake me up, but I didn't hear much on the 3rd floor). The owner is very friendly and quick in his communication.
For a longer stay in Athens I wouldn't book this again (I personally missed having a kitchen), but for a short stay in Athens, I would definitely come back.