I don't know where to start really! Yavuz has been the most attentive host. When we arrived to Istanbul the previous guests did not check out their luggage. We could not stay in the apartment, but Yavuz arranged for us to stay in another apartment 2 minutes away. Given the unfortunate situation, Yavuz made everything as comfortable as possible for us. His friend moved all our luggage the next day to the apartment.
Yavuz has been around for the first half of our stay, and for the second half, he was always reachable by phone whenever we needed him. He helped me get a SIM card to call to the UK, as my U.K. SIM did not work. Yavuz's friend, was also incredibly helpful.
In terms of the apartment, it's as it is described in the profile. It has all of the basic amenities that are needed. However, the apartment we stayed was on the 4th floor. For people with children this may not be convenient, but we found it just fine.
Furthermore there service was amazing they arranged for the children's dry clean on short notice.