That mouse is great for sniping. My buddy uses the fps button on the side to lower the dpi so that he can get more accurate shots when aiming down sights. Although what the other guy is saying is that it is meant for people with bigger palms which is a down side but since i do also have a bigger palm. I use the corsair scimitar because i like having the extra button incase i need it
I cannot stand the free scrolling mouse wheel on the G502. Needed to disable it for some games that use the wheel for zooming in and out. Plugged back my G402 which I love.
I have the G502 and the G403 and rival 310, but I also recently got the Rival 600 and the sensor and depth perception makes it the best mouse i have ever used