The flat seriously need air-condition because Istanbul weather is too hot in the summer and the flat is in a unbelievably noisy and busy location and you couldn’t leave the windows open. And if you had Rent-A-Car or have a lot of luggages you will be in trouble with the stairs and very hilly road. adding some photo from the stairs and the road will be very helpful.
The bathroom’s sink need to be fixed it’s wet all the time.
the flat is so bright and very safe. And You could experience good communication with the host.