Very clean apartment. Everything was as expected and the host was waiting for me in the apartment to hand me the keys although I was 30' late. The location is great as you can be in the city center in a few minutes by walking. As other people have mentioned the neighborhood might not feel the safest one (due to the huge migrant presence) but that's expected in every big city's historical city center and I didn't feel threaded at any time.
Overall I would recommend the residence in anyone who wants to explore Athens, a good value for money choice.