The mouse is ok but not worth the quality of finish of the MX 1000 as I always have. The MX performance is lighter but the handling is easy and enjoyable. This being the mouse performance is still very good even if my taste it does not compete with the MX Revolution. She has an advantage against by where we could change the batteries. For the MX had to play the soldering iron to change the battery when "she was dying.
Overall this is a whole I highly recommend, especially since it allows to save on both products of very good quality.
The only unknown and the lifetime of the products my old keyboard and my mouse still works and this only since December 2006 the letter S on the keyboard is slightly erased. I hope they pose will be the same for the life of this product.
