Dimitris' place is perfect when you're looking for a quiet place to stay close to the city centre. The apartment is spacious, homely, and complete with extra "facilities" like guidebooks, tv, dvd, games (this place is a must if you like board games, he has games like Jaipur, Sherlock Holmes, Memoir44, etc.).
The shower might be the weak spot of the apartment if I had to pick one, but this is greatly exaggerated in some of the reviews (in my opinion): you can shower comfortably, with hot water, only thing is that the bathroom gets a little wet. We weren't bothered by this.
Dimitris is very welcoming and quick in responding to messages. Upon arrival he showed us around the neighbourhood and gave us some useful tips. We enjoyed our stay very much.