I stayed at their place with my brother and I must admit that I couldn't have found a better place to stay in Istanbul. We didn't get to meet Ozge and Cihan, but they both were always available on phone for everything. Their house is neat and clean and has everything that one might need during their stay. They keep a lot of groceries and we cooked our food at home. It's very near taksim Square and metro also. On one side Findikli and other side taksim station. I won't be wrong if I say that we spent more time at home than outside. If you are visiting Istanbul, think no further and book their place. I am sure yor stay will be wonderful.