Turkey has a totally different culture than Europe [obviously]. It is natural that when a person comes to this part of the world after living in the Western country for almost half a decade, he will have initial culture shock.
On my first day in Istanbul my jaw dropped when I saw CROWDS of people EVERYWHERE. So many people. So much NOISE that it was difficult to breath freely.
It was really unusual for me. I guess I was too used to a quiet, clean, organised city of Prague with population of only 1 million something people [Istanbul has 15 million population].
Istanbul is sooo huge it is crazy. The only city I have been to - that is as big and diverse - is New York.
Istanbul for me is like Muslim version of New York: huge city, a lot of diverse cultures, crowded, everybody is rushing somewhere, extremely busy city [maybe Paris can also compete with them].
Now I am already more or less used to this busy city. People have been only nice to me so far. I am enjoying listening the sound of Adhaan early in the morning and during the day [there are literally 3 mosques in my neighbourhood].
I am enjoying convenience of having a place to pray wherever I go and of EATING whatever I wish and wherever I wish.
So far it has been only good experiences. I hope it will continue being so.
P.S. Let me know in comments what you think.