The apartment itself is simple, but everything you need is there. Also, it was clean, and the little garden and especially the roof terrace are very beautiful. But the best of all is the location. Everything you usually want to see can easily be reached by foot, and if you want to go further, there is a metro station very close. Although you are very central, the place itself is not loud or busy at night.
While others had problems with the wi-fi, it worked fine during our stay.
Andrea as a host took great care of us, he was very accommodating and friendly.
If you don't expect a 4-star-hotel, this is a great place to stay in Athens.