I decided to try an anti-radar sticker on my car a few months ago and I can share my personal experience. At first, like you, I was skeptical and doubted whether such a trifle could really affect the operation of speed cameras. But after installing the sticker, which I ordered on the website https://antiradarsticker.com/ , I noticed that I began to feel calmer about speed limiters on the road. Of course, this is not magic protection, but the sticker does create an additional layer of protection and a psychological effect: drivers are more attentive to their speed, and cameras sometimes do not record excess where there were fines before. I have already had situations when other cars received fines for excess, and my car with the sticker passed calmly. The service on the website is convenient, delivery is fast, the sticker is easy to stick on and holds securely