I booked last minute in this apartment - I just wanted an apartment in the center of the city. It turned out to be a very nice surprise. It is very luminous, everything is brand new. It seems that the owners have thought of everything that a guest might need. It's probably the best rental apartment I have stayed. Moreover, the "alternative" neighborhood is rather interesting, full of small tavernas and bars, crowded by (mostly) youngsters.
We stayed for 3 nights at this appartment. It´s brand new, perfectly clean and well equipped with everything you might need and the beds and furniture are very comfortable, as well as the bathroom (great shower) and the great kitchen. You can tell that the hosts have thought of every little tiny detail. The Victoria metro station is 5 minutes walking from the appartment, but you can also walk to Syntagma, it takes you about 15 minutes. We were 3 people, but there is space for up to 6 people in the appartment. We recommend the place totally for people who spend some time in Athens for business or pleasure.