Hello. I have been using my Razer Viper (RZ01-0255) for around a year and a half now. Recently I started getting issues related to the scroll wheel. Scrolling down sometimes scrolls up and vice versa. Other times it scrolls too far or it isn’t registered at all. I updated Windows, updated the firmware, the mouse is connected directly to the PC and closing Synapse or reinstalling the drivers doesn’t resolve the problem.
Another issue is the build quality. Over time the buttons got loose and started rattling.