Having a massive hand span and a penchant for competitive gaming, my searches brought me to this mouse. Incredibly comfy and well fitting, whether you are using palm or claw grip – even when playing for hours on end. The adjustable DPI button UNDERNEATH the mouse is an added stroke of genius; there's no way it's going to be anything other than what you set it to. (This is particularly based on my previous experience with mice such as the Genius GX Ammox 4 Button Gaming Mouse, whose button is located right beneath the scroll wheel.) Fantastic mouse – a must have.