The hosts are great. They were always accessible and went beyond expectations in guiding us.
The house is clean and there is enough space for 6 people, more than that would be a stretch.
The location is great and in between Taksim and Ferry rides and you can access the rest with metro/bus/ferry.
The only problem is that this area is on a very steep slope. I had my aunt with me and it was difficult to go up and down the streets without sweating. It is more appropriate for young people. There are many stairs to get to the apartment and with luggage, it is hard to go up.