Perhaps a marriage, but it seems that this is from the build quality and components. * service center and "warranty replacement" is extremely far from me. Some pros: The shape of the mouse is perfect for me. Long searched, found. The light weight is a huge plus for me. Cons: 2 months have passed, the wheel "flew", 2 scrolls down 1 automatically up. "Treated" temporarily by artisanal methods. Another month has passed, the right mouse button began to buzz, double clicks appeared, sometimes pressing a pause on YouTube and other videos is a problem, there is a physical click, "there" is not perceived.