The neighborhood is very authentic but can be a bit scary at night, as some street miss public lightning equipment.
The house is a bit old, but very clean.
Irem is very nice, i had a great time just staying in the flat some evening and playing backgammon, driking cay .. I also got some super helpful communication.
Shanti, her dog, is super cute and friendly, hanging out with us in the living room all the time.
Note that drinking water comes extra (10tl/week), as the tap water is not recommended for drinking in Turkey.
Overall, i got a great value for the price and got to live in a "real" part of istanbul, not in a completely tourism focused zone.
I'd definitely recommend getting this place if you're on a buget or looking for an authentic experience in Istanbul