The location is great. Extremely close to the main lively area for the evenings and a short walk to the old town.
The apartment is next door to a school or playground so the mornings were extremely loud with kids playing and there are quite a few cats in the road so there were a few bad smells at times.
If these things don't bother you then this place is a great apartment for a short weekend break in Istanbul. Kürşad was extremely helpful and quick with communication.