My fiancé and I stayed here for 5 nights on our vacation to Istanbul. The apartment was clean, modern and centrally located in the heart of Besiktas Square. It was also incredibly secure, both the building and the apartment itself. So many things to do just by going downstairs to besiktas square and easy place to catch a taxi to go anywhere else.
Bartu was easy to communicate , although nothing of note really came up during our stay.
Overall the experience was smooth and pleasant, would definitely stay here again when we return!