Mehmet was excellent in navigating us through and sharing his knowledge of the historical sites of Istanbul. I appreciated his flexibility in providing me opportunities to rest as I am recovering from a knee injury and my endurance wasn't what it used to be. He had already purchased the tickets to the sites and facilitated shortening the lines, and finding me a place to sit while he and my sister were in the queues. Mehmet arranged for me to stay at a local cafe and people watch and enjoy Turkish tea, while he and my sister went to the Grand Bazaar so she could shop. (I had already been several times on previous trips.) I appreciated that Mehmet is also a world traveler which I believe gives him enlightened insights into his own country and culture. I would highly recommend Mehmet.