First, the place: it's perfectly located in the middle of the vibrant Kadikoy area. There are plenty of shops, restaurants, and cafes at your doorstep. It's a well-appointed room with clean shared facilities (laundry, kitchen) too.
Secondly, the host: Gokalp is a very attentive and responsive host who makes a big effort to ensure you have a nice stay. He was very helpful and flexible at all times!
I would recommend this place without hesitation!