We stayed for 4 weeks around new year. I recommend this place overall specially for short stays.
The positives:
1. The location is great, at the heart of Besiktas with loads of restaurants and cafes at the door step. Also a very short walk to Besiktas bus station and port. We really liked it for that
2. Talha is very friendly and responsive. He helped us with placing online orders, booking taxi, etc.
3.The flat is reasonably spacious. All consumable products were provided including dishwashers tablets and laundry powder.
The negatives:
1.The apartment is on 2nd floor with a curved narrow stairway. Very difficult to move luggage. No lift. But after all it probably goes for all houses in the area.
2.The bathroom is small and damp and poorly ventilated with traces of mold. Note we were there over winter so warmer seasons may be better.
3.The floor is squeaky so anyone going to bathroom at night will wake up everyone.
4. Kitchen utensil are minimal. Probably ok for just 2 ppl