We had a wonderful stay at Deniz Houses Hotel. The staff are very accommodating and professional. I especially like that they arranged our airport transportation each way. Kamil was very good about communications from the moment we booked the room. Also, the location of the hotel is ideal! We did not take advantage of any tour services because our stay was so brief, but I will certainly book a dinner cruise through the hotel next time we visit Istanbul! Many thanks to Kamil and staff!