From what I saw on youtube, it seems like a mix rescue limiter for the master bus? It seems (again 1st blush) like if it's recorded properly, bused properly, EQed, compressed and limited/gated/expanded/excited, De-essed, delayed, verbed, widened, and panned properly all along they way? Well, I'm not the mix guru, but there's a lot of guys I look up to here who do what I just described and get "AMAZING" results...