I've done all 3 parts of the protocol. Out of the three, I would say that the Silver Pulser worked the best for me, though by no means did it heal my infections, unfortunately. I've watched all his videos and really believe there is merit to his research and inventions (there must be, right? He died by "accidentally" falling off a ladder).
Here are some good articles about the Beck Protocol
Here is another really good Bob Beck video.