Great place and location, it's walkable to pretty much everyone in Kadikoy.
The place is truly unique, it's an old palace from the Ottoman Empire era and has that vintage feeling all over its walls.
The ceilings were pretty high so it felt fresh and breathable. Since it's an old house, there's no living room where you can chill as you'd in newer houses but the room is perfect and Istanbul is not the place to sit around home and watch TV anyway.
Also, you get great value for the buck and I'd defo recommend this place.