The host was wonderful. He helped us arrange for transportation who picked us from the airport. Although we did not get to meet the host in person, he provided us with clear and easy to follow instructions for check-in, and was always available to answer questions.
The apartment is beautiful and very spacious. We also appreciated the Greek wine and dried figs that the host had left for us. There was also a book with lots of recommendations on things to do/see and eat.
Location was great. It is very convenient to walk (about 10 - 20 minutes) to the Acropolis, Plaka, and Monastiraki. Would definitely stay here again next time we're in Athens!