The benefit of mains regeneration over conditioners is that they also reduce harmonic distortion of the mains waveform.
That said still not sure which way I will go myself in near future; maybe Isotek Evo3 Titan conditioner (probably looking more at conditioners myself and accept it cannot do some aspects of regenerators), or PS Audio P10 mains regenerator (but difficult not to stress/push near or pass limits if wanting to connect integrated or pwr amps).
Great PS Audio p10 review by Keith Howard showing benefit of mains regeneration using bespoke measurement setup, and with some good explanations.
http://www.signaturesystems.co.uk/HF...0%20review.pdf
Notice though that he is very careful what equipment he uses with the P10, so my concern is just how much it can really handle (this is the challenge with mains regeneration and size-active supply constraints, applies in some ways to conditioners but IMO to a lesser degree in comparison).
Enjoy the read.
Cheers
Orb