Mehtap is a great host and a superb person, her place is in one of the most prestigious /safe neighborhoods of Istanbul, and the place itself was clean and calm.
The apartment is within 5-7 mins' walking distance of Beşiktaş, a very well-known neighborhood with a lot of pubs, shops, and restaurants. it was also easy to get from there to the Asian side (kadıköy,üsküdar), or to other parts of Istanbul.
highly recommended and I would be happy to book it again.
p.s: Mehtap, thanks for the breakfast and the chat :)