Have this mouse bought that I was always impressed by Logitech. Currently I am also still. However, I do not at this, how that uses my girlfriend even when its predecessor, noticed that the lid where radio receiver and batteries do not sit under it is properly seated. This wobbles. light. Surprised me honestly. For all other disturbs that: Just with tesafilm the two hook up and down at once "Switching" cover. Then everything is perfect and no longer wobbles.
Otherwise, the wheel is a bit of getting used to as it is not as accurate as one with more resistance. For a long pages can thus faster and more convenient scrolling.