Yes, it is true the PF60 does not have automatic voltage regulation. All they say is that it has overvoltage protection. I'm also wondering about the noise filtering capabilities of the PF60. APC has a fairly detailed spec sheet on their website, but on Belkins website they are kind of vague when it comes to EMI/RFI noise filtering numbers. All I can find is that the PF60 has "phase 6 purefilter circuitry", whatever that means. I'm having a hard time deciding as they both appear to be pretty good units.