Just did it in direct comparison to "normal" recovery technique during a base check with someone the other day. It is really astonishing just how much quicker the recovery is and would recommend anyone to give it a try. In a side by side comparison both of us on board managed recovery from fully developed VRS within 50 feet consistently while the normal technique always required at least 100 to 150 feet. However it does feel a lot more violent going through the Vortices.
When it comes to SWP I don't think I'd use that technique though: pushing full left pedal, entering a 10-20° bank, exposing the whole fuselage to more drag by going sideways and the need to bring in collective would certainly aggravate any settling with power situation.