I stayed here for about 10 days and it was a nice experience. The place was clean and quite. It is close to the Taksim square. There is an underground parking lot which would be very useful if you have your own/rental car. Having a washing machine, iron, and drying rack was also very nice, particularly if one intends to stay for an extended period of time.
There is an initial supply of toiletries, however, replenishment will not be included.
Communication was very good and whenever I contacted on Airbnb messaging service, I received responses very quickly.
Regarding the price-performance matter, however, I believe it is a bit pricey.