These forums really don't like small companies or at least they don't like Cooler Master for some reason.
Pesonally i am extremely happy with every mouse i have owned from Cooler Master.
I still have and use the Alcor and the Xornet 2.
Actually Xornet 2 is my prefered driver for OW and CS:GO since it is so lightweight and cheap that i can replace whenever something breaks, but still nothing has broken, going strong for 3.5 years now of everyday use.
The only "bad thing" CM mice have is high LOD. But it is not even that high to be unusable. I have seen a lot of more "fail" mice from Razer, with jumping cursor or cursors that stop tracking, i have seen mice from corsair with click latency that makes you wanna throw the mouse out of the window, mice with crap ergonomics from logitech (g-pro) or alien looking ones that are way to heavy to be used in any fps game (g502). I mean cut them some slack guys. Cooler Master mice have always decent ergonomics, weight and are extremely durable (one of the few companies that still produces durable mice).
I just wish they re-release the Recon mouse in the future with a 3360 sensor.
As for those that say the 3320 on Xornet 2 is crap i am sorry but i have never had any troubles tracking or flicking with the specific sensor on a good quality mouse pad.
*EDIT* Even their Reaper mouse that is big as boat and heavy like a tank with an offcenter sensor is decent and usable in games like HOTS, WoW, Arma 3 etc.