The apartment is great, excatly as you see it on Airbnb: brand new and very clean, it has air conditioning in every room (except the bathroom :-) and everything you may need for a long stay. The location is ideal if you want to live Athens during the day as well as during the night (hundreds of bars/pubs and places to eat). Just go out and walk, you can easily reach the acropolis, Mt. Lycabettus (Likavitos) and the Filopappou Hill.
Last but not least Dimitris is an exceptional host, very helpful and kind. Super recommended!