Installation is very easy
The first half day of use is a bit special, we try to move the trackball on the table without stopping ...
And then, all is all alone, gestures become natural, and arm / wrist / hand rest without thinking about it.
A true happiness.
The plus is the wireless provided by the USB unifying. You can move the trackball anywhere on the table to be in the position that you want (writing on keyboard, watch a movie, ...), and even put a little away once the computer extinguishes.
I highly recommend.
