Yeah, not using Reaper so I’m not sure how ReaFIR compares to Soothe or DSEQ in terms of sound quality and speed, but it def looks very nice!
Btw, I tested some plugins that can do similar stuff a while ago and went with DSEQ - but tbh a while after that I had a very weak moment and also got me some Gullfoss lol: Automatic resonance reduction (soothe, DSEQ...) and sound improvement (GULLFOSS; Intensity, DSM...)