First of all, Kubilay and Nawid are so friendly and helpful. He kept assisting me as a tourist even from before I arrived by continuous messaging each other.
In terms of the house, first, it is very clean, comfortable, and safe. The room, the bathroom, and the kitchen were so well-organized. All of the untensils are complete and usable. In addition, it is also very close with the nearest tram station with access to other sides of Berlin.
I definitely highly recommend you to stay in their place and it has been one of the best places to live.
Thank you Kubilay and Nawid!