I had a mixed experience in this apartment.
I will start with the positive things:
First I want to point out, that Demetris is an excellent host. He always replied quickly to my messages and even when I called him at 6 am after a very long night at the airport (during the snowstorm) he picked up the phone. He made sure to always answer all of my questions. So as a host Demetrios gets 5* without hesitation.
Another plus is the location. The apartment is a 2-minute walk away from the metro station "Keramikos". So you can hop into the blue line from the airport and go straight to your last metro stop without switching lines, or vice versa. The nearby area "Gazi" is also perfect for going out. It has a lot of bars, clubs, etc. So you just have to walk outside the door and you're practically there.

Now to the things that I didn't like:
First the apartment description...Lux-apartment is something that I wouldn't call it at all. The building itself looks modern, compared to the ones surrounding it. But on the inside, it is not luxurious by far...The furniture looks dated. You can see that the bed and the kitchen have seen better days. The small window in the kitchen area had tape on it as blinds (?!). Also, the description says that there is a washing machine and a dryer, but there is neither one nor the other.
Another thing that was a little annoying to me, is the staircase to the apartment. The apartment is on the 4th floor and the staircase is SOOO small. I was alone with a piece of hand luggage and I had to carry it in front of me since it didn't fit beside me.
Other than that the stay was okay overall. As I said, I just stayed for 4 nights and I just needed an apartment located close to the metro station. For that purpose it was good, but I believe for longer durations it wouldn't be a good choice for me.