Nektarios is a very interactive host, he will help you all along your journey. And he is available when you need it.
Unfortunately you might not meet him in person during your journey. (I didn't)
The apartment is very nice, super clean and shiny. The balcony is amazing and the view is nice. It is located next to a frequented road but personally I didn't hear anything it was very quiet.
This is a perfect apartment for short stays, it is not so far from the airport (by bus). It is an ideal place for students of TEI because it is right next to it (10-15 min by walk).
The only negative points was the wifi, sometimes it doesn't works and most of the time it is slow. But if you don't need internet, this is the perfect apartment.
It was a very good experience.