The place looks like in the pictures provided. The cleanness was on point.
There is air conditioning in all the rooms which is an advantage since in Athens is really hot during summer.
The check in was really easy (the owner waited for us to arrive and gave us the key although we arrived at 10:30PM) and for check out we simply let the keys inside and closed the door.
There is a non-stop shop and cafe downstairs which was really convenient for us.
Also, there is a bus station just outside the building and the Victoria metro station is at 700 m from the location.
One of the disadvantages was that although we kept the windows and doors closed during the night we still could hear the motorcycles outside which can be loud (in the first night was hard to sleep, but we got used to it and in the other nights we could sleep (probably also due to the fact that we wore mode tired)).
As a conclusion, I recommend this place during your visit in Athens.