Although we didn't meet Leonidas, he was constantly accessible to us and both him and his wife, Lillian, provided us with ample and detailed advice almost immediately when we asked.
I simply do not have the words to describe how beautiful the accommodation is. It was glorious waking up to the sunrise through the wall-sized window every morning and watching the sunset behind the Parthenon every night. The skyline is jaw-dropping. After we climbed Lycabettus hill, we came to the conclusion that the view was just as beautiful from here.
It is worth noting that the walk up to the accommodation is not easy though, and the slope is definitely steep. That being said, at the base of the apartment building, there are many fantastic cafes.
All in all, it was an incredible time and we're definitely going to recommend this place to anyone coming to Athens.