We were a group of 4, and for each of it felt like home-away-from-home. We could see the hagia sophia from the balcony, we took in a 360 degree view of the city from the terrace and explore the galata neighborhood on foot (galata tower is just right there, around the corner).
Yunusemre and his brother are super hosts and seldom can one find such hospitalble people (let alone on airbnb). Not only did he speak to the can driver from the airport to drop us at the airport & help us with our luggage, he very graciously let me and a friend keep luggage at his place for about 6 hrs after we arrived from Antalya and until the time we had to leave to the airport. This is how safe and secure we felt at his place.
This is where I would recommed all my friends to stay whenever they might visit Istanbul.