Nick's apartment is fantastic. It has a big and spacious living room and usable kitchen with all the mod-cons that you could want. The bedroom as well is big and light with a double bed that was very comfortable and modern and with an ensuite bathroom. The place was always clean and tidy.
Nick was a great host, respecting personal privacy but at the same time being helpful whenever I asked questions or had doubts. He even came and picked me up from the metro station.
The apartment is really close to the centre, (about a 5 min walk to the metro station that goes directly to the airport, about 10 min walk to Sintagma Square and about 15 mins from the Akropolis), yet the area is peaceful and quiet, away from the hussle and bussle of the touristy centre which was great. I would definitely recommend Nick's place!