Bartu's place was great! I stayed there 2 weeks. It is in the center of Besiktas, surrounded with many bars, restaurants and coffee shops. It is 5 min walk to the seaside and transportation. The apartment was well decorated, spacious, clean and tidy. It has all needed equipment (in the kitchen and bathroom) and good internet. Bartu was always responsive and helpful. Check-in and check-out were easy and flexible. I definitely recommend this place!