Technically Top, processing mies

I have this wireless mouse now has almost 1.5 years of service and had been thus largely satisfied.
Battery life described I could not reach, but if you have to change the batteries in almost daily use of about 8 hours once a year, is not that really tragic.

Disappointed me the product through its processing.
The rubberized facing (left and right) catches on the sides of the mouse to dissolve itself and sticks like crazy. Particularly unpleasant is that on the left side of the mouse, because I bear there, than right, my thumb.

In itself not a bad product, only the processing is difficult to be desired.