The stay was perfect for my family of 5. Each room has its own full bathroom.
The rooms are all connected to each other but there is no living room. It was a quite noisy at night with the windows open.
The overall quality of the rooms and furniture was nothing above average.
There is a supermarket and pharmacy under the building and it is on a street filled with local boutiques which was lovely. Its also a 5 minute walk from Galata tower and Galata port.
They were very accommodating to anything we needed for the apartment. They were kind enough to store 2 bags for us after we checked out as we took a short trip out of istanbul and we collected the bags a week later when we came back.
I would rent it again for sure, mostly for its prime location.