Ibra's place is fantastic, he is a super host, so helpful and friendly. I stayed there twice and that was a very good decision. Kadikoy is a quite interesting district, full of cafes and cultural spots, Moda is also an extremely cool experience.
Location is really convenient : there is ferry to the European side, tram, shuttle bus to Istanbul airport, metro station and the Marmaray it’s just one station ahead. Highly recommended.