This place was in a very close location to major tourist attractions on the golden horn like Hagia Sophia, Blue Mosque, and Topkapī. There was also a nice street with shops and restaurants very close. The place was a bit hard to find even for our Turkish driver. So I'd suggest you get GPS coordinates or a cross street. Once we knew where we were going it was easy.
The street and neighborhood may look a little run-down to some western guests. But, even still the hosts were very conscious of security. They were always monitoring who was coming and going and the main exterior door was always locked.
The place itself was nice. It is not fancy but was a great value. I believe you get what you pay for, so if you want a fancy place, you will pay a lot more for a hotel. There is also no elevator/lift, but the hosts helped with our bags. We usually travel lightly.
There is a nice kitchenette with stove top and small refrigerator. The bathroom was small. The shower tended to leak water when using. But again, you get what you pay for. Also, Turkish beds tend to be very hard by western standards. We stayed at about 6-7 Airbnb/hotels while on this trip and only one had a relatively soft mattress.
I would use this place again as I enjoy being walking distance to local life and sites. Turkish people were wonderful and very hospitable to guests.