I am pretty disheartened that an apartment located two blocks away from people shooting up heroin at 12pm (that I saw myself) has almost 5 stars on Airbnb, and that barely anyone mentioned this in recent reviews. I felt completely misled, this has taught me that I cannot rely blindly on reviews.
The host is amazing, extremely hospitable and communicative and the apartment itself is very nice, but had I truly understood the location of the apartment there is no way I would have chosen it. It is close to Omonoia, which is notoriously one of the roughest neighborhoods in Athens. I was terribly stressed as a solo female traveler, especially if I had to come back to the apartment late, which is not the way I like to spend my vacations. I am very sorry for the hosts that I felt obligated to write this review because they are clearly lovely people, but I wouldn't want another person to feel the way I felt during their stay.