The best host ever ! I must say that in reviewing this apartment the first point I want to remark is Helin herself - a fantastic communicator, taking care of every single step, always available, and helping to organize taxi, etc. She is simply the best host I have ever met in the past ten-fifteen years of my travels.
I stayed 1.5 months in her little apartment. The location in Ortakoy is great, shops, restaurants, everything is nearby, and runners can run in the seaside. However, the apartment is only good for perhaps people below 50 as the last 200 meters are VERY steep in the street. Otherwise, the apartment is quiet, equipped with everything , so an excellent place to stay a few days or weeks. And I have to mention the little garden which must be great during the summer!