We hired Ertunga’s firm to provide a personal guided highlights tour of Istanbul. Our guide, Didem, met us at our hotel and took the time to find out what we had already seen in Istanbul, what we wanted to do and didn’t want to do and also our interests. From the beginning, we found Didem to be warm and friendly and during the tour which took us to Sultanahmet to explore Hagia Sophia, Blue Mosque, Topkapi Palace and Grand Bazaar as well as sights along the way, Didem was both patient with our questions and insightful. She did not hurry us along and made sure we got the most out of our time. All communications with Ertunga were convenient and timely, and he was flexible as we changed plans several times leading up to the day of the tour. We highly recommend Ertunga ‘s company and Didem as a guide.