It is both efficient and accurate in common use as game and marries perfectly with my mouse Cyborg MMO7.
Nevertheless, I removed one star because the smooth surface of the carpet mark easily and N7 logo on the wrist rest has peeled off after a week of use which degrades the visual quality of the product.
This is unfortunate in view of its cost, we would have liked a better finish (especially considering the strategic alignment Razer product "Gamer") to preserve very nice visual qualities of this carpet.