I ought to say that my stay at Malik's place was amazing. Not only he is a very hospitable landlord, but also he was always willing to help whenever I asked some tips. In addition to that, the place was very clean and tidy and the location is, indeed, very comfortable (especially for those who arrive in the new Istanbul airport).
This was my first experience with Airbnb and since it was a really nice one, I will definitely try it again. Thus, I highly recommend this accommodation and the host to anyone who is willing to travel to Istanbul.