This is a top-floor studio that has been recently renovated. Everything looks very new and clean, and the space is really well organized. Everything was perfectly clean on arrival. Mattress was very comfortable. The terrace is huge and nicely decorated, it was winter when I stayed but it must be great to use the bbq on a summer evening. One thing worth mention is that this is a super quiet place, no other neighbors on the same floor. I didn't hear any single noise during my stay.
Communication with Sarantos was always easy and quick. He will make sure you have a nice stay.
The neighborhood, Petralona, is very safe and convenient. It is only a few minutes to the metro station that will take you to Monasteraki in a couple of stops. The studio is very close to Philopappou hill, so you can enter by the south west entrance to this park and follow the ancient road that connected with Piraeus port and it will take you to the Acropolis entrance. Best way to visit the Acropolis!