Great value, but with some odd caveats.
The building appears to be abandoned except for the 2 top floor units (of which this is one). The elevator doesn't work, and all the other floors are open and full of debris and pigeon droppings. It is really quite startling to see. Ultimately though, this doesn't have any effect on the interior of the unit, but you do have to climb the staircase past all these ruined floors.
The unit itself is nice with a big deck. The only thing that might not be obvious is that the couch is also the bed. It feels a bit smaller than the ad looked, but again the deck is very large.
The last thing to note is that although there is a claim of having a view of the Acropolis, that claim may be out of date. Other buildings block that view, besides the tiniest hint of it you can partially see through railing bars on the roof of another building. Don't book this place expecting a vista.
But it was comfortable and cheap. I would probably stay again.