The apartment is veryy good, clean, located in a very strategic place, safe, you can access all type of shops in 1 minute, close to metro station and Cevahir mall...
As for Murat, he is a veryyy nice person, responsive and helpful, he is a good friend now. He helped me since day 1 when I lost my luggage at the airport and he arranged with the airlines to find my luggage.
So this apartment is very recommended!