I went to Mustafas place for a couple of days while I was looking for a flat share during my Erasmus semester and I stayed at the apartment with him and his girlfriend from Serbia. They were both super nice and friendly!:)) The apartment looks exactly like on the pictures and you can really feel at home there:) Mustafa has to work a lot, but in the evening he was still up for having nice conversations, so I got some interesting information about Istanbul and Turkey from him:) Also Mustafa helps you with everything you need:) And Camlica hill is really close to his place (5 minutes) from which you have an amazing view over Istanbul!