The value for price of this place exceeds all its cons. It is very cheap and surprisingly clean as well, I have been to many hotels within Istanbul and this Airbnb is really clean.
The studio we got was spacious and fully equipped with everything, we did not feel that anything was missing.
There was a problem with checking-in but the owners were professional in handeling it.
Be careful if you have heavy stuff as the first floor does not have an elevator.
If you are a light sleeper I do not suggest this place as it is located in a very busy area.
We felt safe as well, although the area did not seem that safe yet the studio itself is very well protected and you can find police officers all around the place.