I have. The guide only specifies (in step 7) that you need USBInjectall.kext, apart from the kexts installed by UniBeast by default. However, USBInjectall.kext is already installed by UniBeast 6.2.0 in the specified folders, so I'm guessing the guide was written for an older version of UniBeast. Also, there's no mention of needing to add the HFSPlus.efi in the drivers64UEFI folder, which was needed with older versions of clover. I'm guessing its not needed anymore?