Our cruise ship had a last-minute cancellation for Mykonos, so we ended up porting in Athens at 7pm. I pulled up the Airbnb app as soon as we got close enough for reception, and found this apartment in the heart of the city. It was a great value, and solid location for everything we wanted to see - plenty of good food and bars in walking distance, and easy enough to find our way to the Acropolis the next morning.
Oh, and the check-in process was the most thorough I've ever experienced. We were met outside of a hotel across the street and walked up to the apartment, shown how everything works, and given plenty of local tips. Great Airbnb find, IMO!