We tested the mouse primarily playing AVA (Korean FPS Alliance of Valiant Arms) and World of Warcraft. The body design allowed for several hours of comfortable and precise gaming. The eight programmable buttons were used to the fullest and even lead to unusual situations, like experimenting to assign the Rapid Fire function to the main left click button, leaving regular shooting to button 4 above the thumb rest. We could check the current DPI setting through the OLED display and there was no need to turn the mouse upside down to change profiles since the button for it was near the scroll wheel. Overall we were very excited about such an excellent gaming mouse coming from a first timer as Cooler Master. Let other future models come.