Isak's place was just as stated. It has all you need for an enjoyable stay in Istanbul. We didn't cook there but you could if you liked, but with so many restaurants nearby why bother. The apartment was comfortable but as stated no window in the bedroom. We just slept with the door opened.
It is in the heart of things so yes there can be some noise.
Isaac himself was a very good host. He met us and showed us the apartment. He was a phone call away if we needed him.