Safa is your man in Istanbul.
Extremely kind and always willing to help.
The rest of the stuff is excellent too.
The place is as described. Spacious and well equiped.
The location is great, regards ghr in the heart of Istanbul , but in a quiet and safe street.
Minor things such as a tv set with sound problems and no cleaning services (at least for the 4 nights we stayed) are nothing comparing to those guys kindness.
Let me say that Safa book a private parking for my car and came by to deal a better price , right there in the heart of the city.
Recommended 100%.