This situation is really special. Though the price tag is a bit higher than the Istanbul average, what you get in return actually makes it an incredible value. Location is perfect- about as central as it gets, but far enough away from the Istiklal (main market street) that there is a good amount peace and quiet. Under a five minute walk to great restaurants, Galata Tower, Istiklal Caddesi, the metro. A really nice 15-minute walk to the ferry in Kariköy. The apartment itself is beautiful. Great shower, super comfortable bed, wood floors and exposed brick walls, loads of natural light. Renovated to fit the historic vibe of the building, but modern. Ali is the perfect host. Laid-back yet completely on top of everything. Very communicative and friendly, but also unobtrusive. I didn't know it, but there is also weekly housekeeping service (including laundry!) at no additional charge. The only cons would be (1) the fact that it sits at the bottom of a hill (for those who may have mobility issues) and (2) thin walls/ceilings, which means that it's not ideal for late night get-togethers or playing music loudly. But these things are overshadowed by the pros listed above as well as dozens that I did not mention. It will absolutely be the first place I look into when I return. Overall, it's basically the ideal scenario for a stay in Istanbul.