I have to support those using RainX applied to the window and the RainX wiper fluid. I do use the RainX windshield cleaner (paste) to clean the window before applying the RainX. I do not get streaks doing that. And reapply the RainX about once a month. I was worried about the wipers before getting this car due to the comments. So far, not an issue for me but that of course does not mean you are not experiencing an issue. I also apply RainX to the side windows and rear windows. Really helps.