In general, a nice mouse for the price, having both its positives and negatives. Has some pros: - a sensitive sensor - a plethora of configurable settings -adjustable backlight (this feature can be significant to some people). price - good ergonomics for the hand - scroll wheel (there is an endless scrolling option and a conventional one), it is handy while browsing through documents Below are some downsides: - even on the second mouse, the braid falls into tatters, it gets very annoyed, low quality wire material. - Teflon feet fall off. - Fingers get tired when working for a long time. - wheel does not always work with side scrolling.