Hey guys, do you know there are CyanogenMod 11 available for Mi3w? But using custom kernel.

Before anything, you should know that there's few known issues:
Reboot when phone goes in Sleep mode.
Nfc
Auto Rotation
Some Sensors
Some inbuild Apps ( Gallery, Camera, Incallui* )
Cpu Downclocked ( 20k antutu Score )

Here the link: http://www.miui.com/forum.php?mod=viewthre...light=3%2B4.4.4 (in chinese)

As the CM11 from cofface is quite buggy and frequently rebooting when entering sleep mode, I suggest you try Mokee OS which based on cofface CM11 but slightly modified (seem to be stabler, and less rebooting). Here's mokee version -> http://download.mokeedev.com/?device=cancro