Günsu's house is an amazing old İstanbul köşk with a mesmerizing view! House was very clean, internet was working properly, kitchen materials were sufficient and has an extra bedroom. The house is only 3 mins away from Bosporus And you can take a ferry to where ever you want. Walking distance to many good restaurants in Büyükdere and Sarıyer and even to Kireçburnu. Günsu was a great host and she answered all of our questions promptly and she was super helpful. Check in was so easy. We will definitely be back.