I stayed at Gulsah's place for almost two weeks in a beautiful and probably one of the safest modern/European neighborhoods in Istanbul. It is located close to Bostanci coast
During this period I spent my time working from home, for which this place was more than suitable with a desk and a comfortable office chair, and fast internet that made video conference possible. Additionally, the living room was more spacious than I expected based on the pictures
The place has a fully equipped kitchen which I didn't make much use of. There is a wash and dryer combo in the bathroom for laundry.