I can only recommend the shopping tour and the tour guide Mehmet to everyone. The guide is super nice and very sociable. I can only recommend it to every tourist.
By the way: The Foreign Office issued a travel warning that you should not fly to Turkey. This is denied by me. It should be noted that I felt very comfortable in Turkey, also with the tour guide. I think the Federal Government is exaggerating Germany.
I would always have the tour guide Mehmet take care of me. My clear favorite. Since Istanbul is very big and I unfortunately have no knowledge of Turkish at all, a German tour guide is a must. The tour guide Mehmet explained the place Istanbul very well, so that I look at Turkey positively from a current point of view. Both in the winter and in the summer months Istanbul is a welcome place for me to stay. Turkish society is also very outgoing. It is best to book a hotel in the Lady Diana Hotel, alternatively close to the Bosporus (sea), so that a meeting point can be arranged with the tour guide Mehmet.