Nasos was a wonderful host. He even picked us (I was traveling with a friend) up in the middle of the night, because our flight arrived that late!
No matter what, we could always ask him about everything and he replied very quickly, we also went out one night and he took us to a really cool rooftopbar only locals knew.

The flat is as you can see in the pictures. It's maybe small but got everything you need, even a small kitchenette.
The best thing about it, is it's localization: You're right in the middle of Plaka, the old town center of Athens.
You can do and visit everything by walking and it's a very quite and safe area.
We honestly can just recommend this apartment and it's host Nasos