The EP-2050 does work as a waveform corrector and as a surge protector. I've tried the Power Plant, I plan on trying the EP-2050 next. Many reviews are positive on the EP-2050, including:
"Examination of my house's line voltage on an oscilloscope revealed a smoother, cleaner 60Hz signal than before."
"Examination of my house's line voltage on an oscilloscope revealed a smoother, cleaner 60Hz signal than before."