Summary: I normally do not write any negative feedback, but this piece of junk is so fking useless that forced me to write one! just to not let others follow my footstep. First, this mada fking mouse has extremely bad reception!
Summary: I expected this to be no different except maybe cosmetics, but it is not even close. Why did they use the same name for a different version? I needed the two upper buttons for Ctrl+C and Ctrl+V, but opening it to use, discovered they shorted it the one button. What is with that?
Summary: I like most everything about this mouse except it needs to be replaced every 8-9 months. What fails is the scroll wheel- it becomes "bumpy" in feel, like driving a car with a flat tire. I put up with this on the 1st one until the rubber became loose on the plastic wheel.
Summary: I used this for about 6 months. My first issue was the battery runs down quickly and you have to replace it ever 3-4 weeks. After 6 months of use the rubber piece covering the scroll wheel became gummy and stretched out.
Summary: Product was great at first but the poor quality came to light after 8 months. Rubber on the wheel started coming off and the rubber on the sides. Is not built to last. Microsoft customer service would not stand by their "3 year warranty". Trying another brand.