+1 Definitely ignore anything from ASR. I completely agree.
Honestly, I take most of what Paul says with a grain of salt. He really likes to listen to himself talk.
I have been in this pursuit for fifty years. I remember when the first regenerators came out. I thought if they were god's gift to the high end audio world, they would take the pursuit by storm. They have not. I have read with interest accounts of their use for decades. It seems to me they achieve the same kind of results you may get with a good power conditioner... perhaps at a higher price. I know folks that have got them and quickly moved on... they improved the sound, but a good power conditioner did more. A couple folks kept them.
So, I'm reading this string in case some folks provide some specifics Cause, the jury still seems out to me. Probably in some specific cases they are the perfect solution.