+ Design very successful and blue lighting contour look great + Mouse perfect for "big hands" + The wheel is nice to turn and does not attack the finger like some other brands + The side buttons are very convenient and accessible The + button to instantly change dpi resolution 1-Click is very significant + Perfect slide
- The location where index and middle fingers rest moves very slightly which generates a little noise if you take off your fingers. - The USB connector (plastic) is wide enough, which is a problem to connect else on the neighboring usb. (3 stars instead of 5 for these two negative points).