We can really recommend Markos Adelphi Apartment in Perissa. He gave us a free transfer from the airport, so we didn't have to worry about how we come to the apartment. The apartment is very clean and everyday we had clean-service. He also gave us a mobilephone, so we could call him whenever we had a question or problem. Its very near from the beach, but the neighborhood was quiet and relaxed.
We had a perfect time and would always come back.