Works on Windows 7 and Linux (Debian Wheezy + KDE-full) excellent. It is symmetrical, which I appreciate because I lay my very not always right, and is due to the weight and the solid rubber side slats awarded in hand. I'm concerned, they could still be bigger quietly a trace, but I also have exceptionally large hands.
Even better it would be if you could change the resolution directly to the mouse (on Windows 8 it was in fact a little fidgety), but after I previously know this feature only from the incredibly great cable Mouse SteelSeries Xai Laser, a points deduction for that would not naturally justify.