The apartment is spacious and is even better than in the photo. It boasts a lot of light and wide terraces. Its location is very, very good: there are a lot of wonderful restaurants and bars, a pharmacy and a supermarket on neighboring streets. Also, it's quite close to the metro station and the main attractions.
Among the apartment’s flaws, I should mention the old air conditioner, which made the air stale instead of cool. Since we were in Athens during a record heatwave, we had to open our balconies at night, and the bars downstairs became more of a problem for us because of the noise.
So, if you come to Athens when the weather is OK, this apartment would be a great choice.