Although one shouldn't expect to have the same close-up sight like in the advertised photo, which is definitely zoomed-in, the view is nonetheless amazing and you can enjoy it from the apartment's balcony.
The apartment is also close to the Kerameikos metro station, about 500m, which is part of the line that connects the airport. Another close-by metro station is Thisio, next to the Ancient Agora, which you can reach after a ten minute walk. You pass through a very nice street, Iraklidon, on your way to the apartment, that features quiet small coffee shops.
At this point, my first choice when visiting Athens.