First of all the apartment was clean and in a good condition!
Except of a little problem with the frame of the bathroom‘s door, everything was fine.
Sibel is also a very kind and supportive host and she even helped us ordering pizza! ;)
Just keep in mind the apartment is located at the top of the building, so it’s getting quite hot in summer due of the lack of an air conditioner.
All in all i can really recommend her apartment and i might book it again, if i come back to Istanbul.