I had a great time staying at Dimitris' place. Everything was clean and tidy, the air condition was working well and the bed was comfortable (additional pillows were in the wardrobe).
The apartment is located in the basement and has only one window, but it ended up not being a problem as I left it closed and covered for privacy and temperature reasons. The location is all right - in a typical dormitory district of Athens. The apartment is very close to busses and trams, which can take you to the main tourist attractions in about 15 minutes. If you choose to walk, it is about 40 minutes. Cheap eats and takeaway options can be found very close to the apartment.
Dimitris was incredibly helpful and the communication with him was great. He really cared and was available should a need occur. For example, when the batteries in the remote control ran out, a fresh pair was waiting for me by the door on the same evening.
Overall, I recommend staying at this apartment and Dimitris as a host.