VelocityReviews.com has posted a review on the Razer eXactMat 

Most of us are cheapskates when it comes to a mouse pad. We simply take the super-cheap cloth covered foam pads that the store kicks in for free. The traction is good for the most part, but they easily and quickly become dirty and disgusting. Option two of course is to buy a plastic surfaced mouse pad, but while these protect against spills, the surfaces are usually still glued to the same foam backing, and with use become overly smooth, with the foam rotting away at the same rate. Razer has come along with a unique design mouse pad design that will forever put you in shame for using the rotting cloth you called a mousepad.