Kaan apartment is quite nice and very clean. After reserving this apartment, you will receive a message from them with their telephone number. They are always online and answer quickly. In case you need help, they will try to help you in a friendly manner. The cooling and heating system is also fine and in total the entire apartment is quite comfortable. Do not forget to bring tea or coffee for the first day before buying some for yourself. The neighborhood is also fine, there is a supermarket near the apartment but it is a bit more expensive than the others. So, I recommend you to buy your stuff from other supermarkets. The apartment has lots of windows that you can open them during summer because they are equipped with bug blocker. The lighting of the flat is also perfect. The washing machine and dishwasher are also clean. The only thing that you should consider is that in the wintertime it might be a bit difficult to commute in the streets due to the steep street slope (which is normal in Turkey). Safety is completely respected in this apartment and the lift works well. Although it is not at the center of Istanbul, close to the markets, with Uber you can go easily to the shopping malls or tourist places to visit. In short, you can experience a nice and safe trip in Kaan apartment.