I love this product. It actually sticks... if you use it right. I bought it in the fall when it was cold and at first it wouldn't stick for any length of time. It would fall off at random times. I had heard great things about this product, and thought maybe it was a temperature-related problem. When I tried it again in the spring, it was somewhat better, but it would still fall off eventually. Then, I moved it from the side of the windshield to the center. Wow, what a difference! It has fallen once in the 4 months since, but I might not have tightened it properly. I think the side of my windshield is just too curved.