Overall I had a great time during my stay in Istanbul.
I had some troubles at the beginning, as the Airbnb App showed me a different address which made my arrival pretty hard, as i couldn't find the apartment.
Only thing that bothered me was the unstable Wifi Connection and for some reason the lights in the second floor did not work.
As I already had few discussions due to the address and WiFi problems, I wasn't in the mood get behind that problem.
I guess that the Wifi as well as the light issue isn't common, so I wouldn't see that as a dealbreaker:
Zehra was very helpful and answered within half an hour, as soon as I needed assistance.
Thanks for the stay :)