We booked the flat with "instant book" function. The owner - Bilal is a very friendly person. Everything in the flat is brand new, so it would be very comfortable for every guest to live there. The flat is located in 3 min walking from the Istiklal str. (one of the most popular street in Istanbul) and not far from the Bosphorus channel.
I recommend to choose Bilal's flat if you are looking for a comfortable flat in Istanbul and if you are not reaching the flat with the city view.