As a big PS audio fan, when it came for a modern power conditioner, I went for the Niagara 7000. I had a power plant premier years ago and found that a passive Acoustic Revive RPT-6 ultimate sounded better. That was 2 generations of power plant ago, though and haven’t heard them. What sold me on The Niagara was mostly the theory behind it and also the fact that (believe it or not) I and also a friend could hear the Niagara’s benefit on power amps on a YouTube demo video. I know it sounds crazy but it was audible.
Now I have to go read Paul’s comments referred to in this topic. No matter the outcome of the benefits of the power plant, I’m in love with their BHK300 amps and DS dac.