We stayed as a couple in Melis apartment for about 2 Months.
To get started, Melis is a great host. Communication with her was effortless and she was always willing to help us in everything. We even met once and she showed us around the neighborhood some hidden gems from the city.
The apartment is very well located. 5 minutes to Taksim Square, and from there you have easy transport to anywhere in the city or the airports outside the city. The space itself we would recommend it more for a single person or perhaps a couple in a shorter stay. The room is small and the closet space was in use already. The bed is comfortable but small-double so two people fit justly.
The flat is in the -2 floor so there is no view but there is a nice terrace in the apartment that also keeps the temperature fresh.
This was a good place to stay in the heart of Istanbul, thanks a lot Melis.