Great apartment, great host, great location. Perfect size for 1-2 people with a studio style room that had 2 big windows, as well as a little kitchenette, and washroom. The apt has a large fridge, small TV, stand up shower with good water pressure, and lots of seating. The bed was very comfortable for Turkey, and the sheets were washed. The internet was fast and reliable. The kitchenette had the basics, small cutting board, knife, plates, bowls, etc. I don't remember a microwave, but I think there was a portable 1 burner electric stove in the cupboard? The kitchenette did smell from the drain, the host said he's working on getting some Draino and a cover for it. The elevator up to the room is an adventure, but still felt safe. Note you will have to walk up 15 steps to get to the elevator. The street and area were very safe, and a short 2 block walk to a main shopping street that led right into Kadikoy market. Everywhere is walkable. Tons of food options just 5-10 min walk. Very short walk to the ferry terminal to Kabatas etc.
Beyazit was one of the nicest hosts I've ever had, and was always available by whatsapp, and made every effort to make my stay great, including letting me use his clothes washers. I even extended for a few extra nights.