This window sucker I never give her back. At that time, I was skeptical and have the people laughed at the have something. But then I have ordered him to look at whether he really is soo great. And that he is :-) It's so quick and easy. And it's super clean. Of course, one must first look how this works so. My first little window was smeared but then it went great. As soon as I have never cleaned my windows. Just great :-)