Power regeneration - good idea? PS audio?

I use a PS Audio P20 for my sources and an Audioquest Niagara 5000 power conditioner for my amps. Despite what anyone claims, I have found the P20 to limit dynamics and bass power for the amps but it excels for the constant current sources. The AQ seems to improve dynamics.

I have a P12 for the stereo stack (Oppomod 203, PSA DSdac, BHK pre, Pink Faun 2.16x, Cisco switch) and 2x P20's running my BHK 300 amps and SVS 3000 subs. Very happy with the performance increase with each one.

“So at the end of it all what is the point of this PS audio regenerator?”

If like me where night/day AC voltage irregularity/variance coming in is significant enough (>5%?), it matters a lot (soundwise), more their stabilizing capability I suppose (adjustable to your system’s preferred setting) eg. My equipments are 230v, but found them best sounding at rock steady 228v.

Hence ‘conditioners only’ don’t work for some. Other candidates I’d like to try are Stromtank, Torus etc.

I have an "all digital source" audio system and each time I've upgraded the power conditioner (Furman->PS Audio P10->PS Audio P15) I've found the performance of my DACs improves (tighter bass, improved stereo image and soundstage, better resolution) for both listening to disks and streaming from a Roon server.

A PS Audio regenerator is definitely something you simply must try in your own setup to determine if it's something for you.

Hearing results will depend on your homes power quality and how your setup responds to without and with one.

Some find it to be a waste of money, others like myself, actually "hear" overall improvement. 

No one here or the audio forums can give you solid advice on what's "best".