Mr. Mert's unit is located in an excellent geographical location in Istanbul. 100 steps to the right is an important bus station and 300 steps to the left is the Osman Bey metro station. Almost all the basic needs are in a radius of 100 meters. Air conditioning system as well as high speed internet and Netflix are the prominent advantages of this unit. The sheets were clean and fresh on the first day. Check-in was great and the privacy was good. But the general cleanliness of the unit was very poor. Probably no dust has been cleaned for years. The accomodation of the unit was all broken and old, and the kitchenware were not clean at all. The biggest drawback, however, was the very bad and thick smell of cigarettes that was stuck to the door and the walls, and is certainly a serious threat to the health of non-smokers. If you are sensitive to the smell of cigarettes, be sure to be careful. However, Mr. Mert is a good host and was always available.