The mouse works properly and is ready for use directly after plugging. The build quality is good, the cable is very thin but durable, and the cable tidy feature very convenient. The only thing that bothers is, as already mentioned in the other review, the highly luminous LED. Nevertheless, a great product and recommended, especially for the price. I am completely satisfied.
Almost two years later: It is now 2011 and the mouse is still in use. Still works properly, is now several times mitgereist over long distances, and has never been problems. Real a top product.