Hakan and Turkan were very nice hosts. I so appreciated their team who was always available on short notice to fix anything in the flat. Their team carried my luggage up the 3 flights of stairs; helped with the heater; as well as set up the clothes washer.
My only major recommendation based on how much luggage you have is to take a private transport to drop you off directly outside the flat. I took a bus to Taksim Square and the bricked roads were tough on luggage wheels.
Going home, I was able to arrange for a very nice private driver to go to the airport for a really reasonable rate.
Istanbul is a magical city. I’m thankful to Hakan & Turkan for their hospitality.