Pro Light weight (87g): less momentum and draws user's stamina much slower
One of the lowest weights on market.
While palm grip fans may see it as a Con , it's surely a Pro for fingertip posse.
Don't get deceived if you see its weight indicated as 127g. Logitech is giving two weights, with and without cord. More often manufacturers just give one number: weight without cord. It can lead to confusion sometimes.
Pro Side buttons are hard to press unwillingly and easy to press when needed
Side buttons are positioned at a different plane from the plane where user's thumb rests however user grabs the mouse. Thumb will not occasionally slip and press the side button, at the same time they are easy to reach with minimal movement. Also, they are neither too stiff nor too loose to press.
Pro Diamond shape and sides skewed towards bottom are the best fingertip grip friends
Ideal shape for fingertip grip.
Diamond shape allows to move mouse freely in wider range, so it does not come in contact with palm. While it may not be the case for lager hands even with other mice, users with smaller hands will get the point.
Skewed sides will not allow thumb and ring/pinkie fingers to slip. Ever.
Pro Compact size gaming mouse
People with small hands needn't look at mice like the Corsair M65 gaming mouse and despair. The G303 gaming mouse has a solution. It's about the size of the $5 USB mice that are often bundled with desktop computers, but it has most of the features of a full-size gaming mouse.