Elena is a great Airbnb host. She waited for us on the flat and gave us the instructions on how to use everything. She also had a list of restaurants and sights close to the flat and the nespresso coffee machine was a plus. She also offered to store our luggage since we had a late flight.
The place is very nice, really close to Syntagma Square so you can go to most of the sights just by walking and Gazi is just two metro stops away if you want to go out at night.