The apartment looks like in the picture: it's really nice and modern, but the are no doors (only a glass door in the toilet), so it could be a problem if you are more than two people.
It's in the city center, really close to restaurants, bars and main artistic places.
Panagiotis is a great host: he met us out of the metro station, he is very kind and gave us good advices.
I think that there is only one problem with this flat: the building hasn't a proper main door, but you have to lift a portcullis (because there is a shop in the entrance of the building). This could be a problem when you come back late in night, because young people sit there to drink and talk. Fortunatelly, we hadn't bad experiences, but I would have known this situation before choosing the flat.