Instruct: Classify an Amazon review as either positive or negative.
Query: Stuttering issues make mouse unusable.

This is my favorite mouse by design/weight/ergonomics standards. Unfortunately the mouse stutters HEAVILY when used anywhere near a wireless router. This makes the mouse unusable for most people. If you plan to do any kind of gaming (I'm not talking about hardcore here... any games involving a mouse), DO NOT PURCHASE THIS PRODUCT.