It's a nice little apartment, just down the hill from Taksim, in and near great neighborhood streets. Serdar was very responsive and friendly, addressing the cigarette smell and water heater issues quickly, and was very helpful when I decided to stay a few days longer in the city. It's Istanbul, so drivers very helpfully honk whenever the constant traffic slows them, just in case someone's sleeping, but it wasn't a problem at night, and the bedroom being in the back of the apartment helped too. I would definitely stay there again.