I've been using soundsoap since it came out.... I remember the original version wasn't real time so it was soemthign I ahd to use in soundforge LOL and I found myself resorting to the inferior Steinberg denoiser a lot so I could tell if any artifacts were audible in my mix without having to bounce a million versions with slightly different settings! But the new versions are great although I've been preferring the brainworx stuff lately just a bit. I definitely get noise issues sampling and recording single coils or vintage synths that hiss. So a couple good real time denoisers are a must.