The apartment was clean, near to the metro station and safe neighbourhood, which I wasn’t sure about. There is a lot of small groceries which are open all night apparently and also some inconspicuous food bars. It is only 4 metro station to the city centre. Station Aghios Nikolaos was safe, we walked to the apartment few times at night and really felt safe. The owner texted back in just a few minutes so there was no problem with communication and he let us leave the baggage at the apartment after check out because we had a late flight so it was really nice of him. 🙂 Really recommend it!