Erkan Özcetin picked us up at our hotel in Kusadasi with a brand new vehicle and drove us to see the sites. The cost for the day was quite reasonable, and Erkan provided a lot of good background for the sites we visited.
Would not hesitate to use his services on a return trip.
fwiw, we were on a bus tour of Turkey, and did this particular day tour on our own, rather than that offered by the tour provider at a higher cost. Very satisified.