We stayed at Ali‘s flat for 1 month and in general it was a good experience!
Ali was always responsive and helped us with all the requests or issues. The location is nice too - very close to Taksim and Nişantaşı!
I would say that the flat needs some renovation, the tab in the bathroom was not stable, as well as the toilet (it was not fully attached to the floor). And also the WiFi is slow and disconnects quite often, so it’s not very suitable if you have to work from home.
Other than that, I would say that the flat is good for its price and I can definitely recommend it for shorter stays!