If I could put 7 stars for location and value, I would do it! :-) I stayed in this apartment for more than a month, and I absolutely loved it's location: it's near the Acropolis area, with lots of trees, cafes, mini markets, pizzerias, coffee shops and bakeries! Syntagma square and the Ermou street (lots of clothing shops there) are just 25 min walk from there, and you will walk through the beautiful touristic Plaka area.
The apartment itself looks very bright and stylish. It's not a luxury hotel with jacuzzi, it's a compact, minimalistic style apartment, and it definitely justifies it's price.
I enjoyed communication with the hosts, there are several of them, ready to help or give a piece of advice. Recommended!