My friend and I stayed in Hatice' apartment in Istanbul. The location is fabulous with easy transport connections. The apartment is just like the pictures show, it's modern, clean all the amenities you may need and the most amazing views towards sultanahmet.
Unfortunately we did not get to meet Hatice as she was called away with her job. However all correspondence was dealt with so fast the whole transaction was smooth and quick. She had her cleaning lady meet us and was there for our departure.
The only thing which is not restricted to Hatice apartment but all in turkey that I did not consider prior is staircases and lack of lifts in apartment blocks. I have a bad back so it's not so easy lugging suitcases up many flights of stairs. The view was worth it though.
I highly recommend Hatice as a host and her apartment.