I went on this tour last year and recommend it highly, with the minor proviso that every day was very fully organised. There was not much time for relaxation. If you have the same tour manager as we had you will enjoy his profound knowledge and kindness immensely: he was Turkish and his name is Ugur pronounced Oooor. If you have the time and inclination before you go to do a bit of reading about the history of Istanbul, The WW1 Gallipoli campaign, and ancient Greece at the time of Troy and Ephesus you will gain a lot. Lastly, I am a vegetarian and Ugur was always able to arrange for me to have suitable meals. Have fun! I did.