Very good communication with Konstantinos and he booked our transportation from the airport to the apartment and again from the apartment to the dock.
We enjoyed staying in his apartment, and everything inside the apartment, was as expected and shown in the photos online. It would have been nice to have a few chairs on the balcony to sit out and enjoy the glorious weather that we had during our stay.
The only downside to this apartment is the location - it is located on a noisy intersection in Kolonaki. The apartment is on the fifth floor with an elevator. However, there are lots of restaurants within walking distance. It is extremely hilly, so good walking shoes are necessary.