Positives:
the 12 buttons on the side are much better prepared and are bevelled, so we semmĂȘle less.
The size and weight of the mice are nickel for an average hand / large
the backlight is just beautiful
Cons:
2 buttons that were on a part of the left click are now below the wheel and are therefore less accessible
There is no longer the switch under the mouse to move the numbers on the keypad keyboard
the profile of the app is now on the cloud
In a general context, the mouse is nickel for an MMO. It is fast and 12 buttons despite the adjustment period is a pure delight.