I stayed here for 1 week and I loved the Mahmut’s place. Its very modern/trendy and has great lighting all over the place. Also It’s located in a nice rich area of Istanbul (away from tourists). There are nice coffee shops and restaurants literally 1 min down the road by walking. The metro station is a 3 min walk. I would rate his place 9.5/10 only because I was sleeping on a small twin bed. Otherwise it has everything a backpacker / solo traveler could ask for.