Bought to replace SS Rival 310, which had problems with the wheel. Sometimes, there was a bug that scrolling worked and because of this, weapons were switched in games. I'm not the first to encounter this bug. SS Prime Wireless also had a problem with the wheel after 4 months, but of a different plan. If you scroll the page, text, etc. down, then sometimes, there is a small "jump" of the page up. Terribly annoying.