Mahmut is one of the most hospitable people I have ever met. He works at the university, is well educated, and can tell a lot about the culture and history of Turkey. He is also a strict Muslim and can talk about Islam if you are interested (however, he also takes refusals calmly). He keeps the house perfectly clean and can treat you to food and snacks of his own cooking. In my case, he was so kind that he even gave me his office so that I could work in peace while I live with him. I would love to stay at his place next time I visit Istanbul.