If you live in a rainy country: go for it! It works a charm! Everytime you think the rainX effect goes you just pull on the wiperhandle and a new coat is applied in 2 seconds! In a dry country: I find rainX makes your window greasy and more streaks and dirt sticks to your window as it doesnt get rinsed enough because of the lack of rain, so I see myself pulling the wiperhandle more often to clear/clean the window....