I stayed at Can´s fat for 10 days, the flat is very comfortable a bit far from the touristic area, but with Uber it costs around TRY 200, not bad at all. There are lots of Malls and outlets nearby. My meetings were 5 minutes from the flat. The building is safe, with a taxi stand downstairs as well as a pharmacy, supermarket. I will stay there again next time I am in Istanbul.