Per
(Acquired in late 2009) + even after now more than 5 years "continuous operation" it runs reliably without any dropouts
+ Quality and reliability as I was allowed to experience seltenst
+ Fast 5000dpi, with whom you can work well and gamble
+ Precision on almost any surface (on glass slightly slower)
+ Clear Driver Software
+ Programmable keys and storable profiles
+ Stabieles cable, still shows no signs of fractures etc. (after 5 years !!)
+ Soliede processing is, I fell down already often but shows no defects!
+ Ungewöhliche form
-> Have never seen this form at a different mouse, at the beginning it was strange,
Then after a week I did not want to miss !!
Contra
- To use slow or uncomfortable on glass (personally never bothered me, because I always have a mouse pad under it are, however, it is for one or the other may be important)
I bought about 5 years ago (end of 2009) the mouse, although I did not MW3 model, but the normal G9x but the specifications are indeed the same!
I have until about 6 months using this mouse even daily and was never satisfied with her! I have it only because of 5000dpi (me too slowly were (yeah my friends also do not believe me, because they have controlled even to gamble down the mouse: 'D)) against the Logitech G502 Core Proteus with 12000dpi (I always use for work, to gamble it runs on approximately 6000dpi) exchanged.
However i owned the G9x still and use it to continue on my laptop, where due to the smaller screen (17 ") sufficient to 5000dpi.
From the form to me the G9x like still better than the G502, although it is a worthy successor.
IMPORTANT FINALLY !!!
!!!!! I highly recommend this mouse to anyone who has the money to afford it yet! It is extremely rugged and a treasure that can never let you down! If Logitech would bring out a successor, then I would not hesitate a second to buy it to me !!!!!