Great place! Been to Istanbul a couple of times and never stayed in a place of this magnitude. It’s a normal AirBnb with all the must haves (A/C; washer; coffee; kitchen; etc) BUT what really makes them stand out is the fact that they comport themselves as a 5star hotel. There’s a 24/7 office, a small cafe with free-of-charge breakfast, all the local help you can and will need (hell, they even sell the Istanbulkart - for local transport- at the office), a cleaning service, and a free luggage storage place for when you check-out but still want to visit other places in Turkey.
The location is grand! There’s a Carrefour and Souq less than a block and a great Irish Pub 3 blocks to the Main Street. Local transportation is located really close.
Highly recommended.