The good:
It's a prime location, can't beat that. Right in the middle of Athens center.
And it's also cheap...very cheap. Almost too cheap to the point of suspicion which turned out to be right, unfortunately.
The bad:
If you need room to sleep, which I would think is the whole point, then this accommodation is really problematic. You have a very popular bar just under it and it plays loud live music until 3 am and some more tunes being played until 4 am. Now being a nocturnal animal who loves to go out until late, I appreciate the nightlife and didn't think it will bother me, but the place is not equipped to deal with the noise. I go to sleep at 3 am usually, but not being able to fall asleep until 4-5 am is too much.
* being fair, the host does provide ear plugs...is that a solution?
On top of that, there is no AC and in the hot Athens summer, it's unbearable to stay there during the day, and also at night. It makes things even more complicated because you have to open the door to the balcony...as if the music wasn't loud enough...
* to be fair, the host does provide a vent..another source of loud noise, but different style. Also, only two power outlets, in weird places...if you use the vent, you can't charge your phone and laptop.
And if you survived the noise, and managed to sleep with the earplugs, you still need to deal with the light coming out from outside in the morning. It's a huge window covered with light shades. In this case, the host doesn't provide blinders.
So, it's a very problematic accommodation option, BUT if you are in need of a very cheap place in the middle of Athens, and thinking of partying hard instead of sleeping, this is a very good solution for you. I thought it was a good one for me, but honestly...I did want to sleep.