Fontini ia a great super friendly host who ensures you have a pleasant stay in Athens.
It is nice to stay in a room / flat which was not only bought / rented to put it on Airbnb and make money with it (with rents locals couldn't afford).
Besides Fontini has two lovely pets and the flat is in a nice and interesting area.
I can fully recommend the place and will be happy to stay there again the next time I am in Athens