Kadir is a great host.. He welcomed us with a smile even we arrived late...
The location of the apartment is great.. a little walk to Taksim..
You will have the best view of Galata Tower at night, trust me.
The only challenge that you will be facing is lack of Elevator, and sine the apartment is in 4th floor, it would be a real effort to go up and down.. for unfit people it would be a real nightmare ...