After so many great experiences with Airbnb, this is the first time I actually write a negative review.
The place is in a great location, close to everything. It's definitely small, but it's big enough for only one person, so I was fine with that. What I didn't like was that it was very dark and not properly soundproofed, so I would often hear noise from upstairs. The fact that the only AC was in the living room was also annoying, because the rest of the house got cold when the weather in Athens got worse. Finally, the fact that the gas line is not active makes heating the house and cooking problematic (although it's positive that the gas issue is now mentioned in the listing).
In any case, I don't really consider the above to be the host's fault, so I wasn't planning to write a negative review. I had a good time in Athens, and the location was convenient.
Unfortunately, a few days after I left, the host asked me to pay 500 euros for "damages"!!! Airbnb is still reviewing the case, so I will not go into details. I will just say that every "issue" mentioned in his absurd claim was either preexisting or simply false. Just an obvious effort to steal my deposit. I have no intention of paying for things that I didn't cause.
This was very very disappointing. It was also surprising, because the host was very polite up to that point. It's a shame he made this decision. Stay at your own risk.