It was a long-term stay (28 days, 2 persons), and it was a perfect one.
Location is nice and convenient: developed, quiet and and good-looking neighborhood with a mall, countless small shops, bars, cafes within walking distance. Transportation is easy: ferry, metro and Marmaray stations are all within 10–15 minutes by feet.
The room was clean and spacious enough, with big bed and furniture including a desk for you laptop. Kitchen is fully equipped with everything you may possibly need for cooking.
The host, Mustafa, is the best host we have ever had, and we had many:) He's very hospitable, mindful, caring, friendly and polite person — pleasant in every way. He made sure that we feel comfortable and don't have any problems. We spent some good time with Mustafa, it felt like we made a friend, and we really didn't want to leave. We plan to come back to Istanbul in several months, really hoping to stay at Mustafa's place again.