Yeah, I've got one of those for the past three or four years, and it's never been actually set off by the power co as of yet.
Main problem is that whenever I've got to do some condenser work, and flip the breaker, such as replacing a rusted out start/kick over capacitor, or waggle the re-lay to un-stick it from the previous winter's detritus, it takes about 30 minutes for the darn box to reset itself, and communicate with the power co. that it's allowed to turn on.
Otherwise, it's been fine.