I have been in the BPT camp for a long time with no regrets. It is fine for the front end of my system. I use a Richard gray 400S for the power amp, knowing that is in parallel not series with the power amp.
When living in Tucson, I was very lucky to have AC power that was quiet, reliable, and apparently clean to begin with. In almost every home since then, I have fought the AC demons. Some sort of leg up is needed where I live now.