We haven't had the chance to meet Ali in person, but he organised the key pick-up and -leave with a close-by market, that allowed us some freedom. The place has an amazingly central location, which was the primary reason for our stay, and we did benefit from it a lot. We did not spend much time at the apartment, owing to its superb location, but all basic amenities, including kettle, stove, fridge, washing machine, hair dryer etc. were available. Cleaning was sufficiently good with fresh linens etc. Although very close to shopping, eating, night-life etc. apartment resides in a quiet street and it is spacious enough with comfortable sofas for also enjoying some quiet time at the apartment.
I definitely recommend the future travellers to consider this flat, to reside in the center of Besiktas hub, allowing easy access and commute to most of the locations in Istanbul, with convenient stay.