This is all true and correct. I wouldn't recommend Redstuff for autocross or road racing, like any ceramic pad, but definitely for heavy or higher speed street driving. I found the Yellowstuff pad to be fine on the track, but less cold bite on the street. Also, the dust was too intense for a handful of track days per year. Redstuff is top shelf for heavier, high horsepower street cars with low dust.Redstuff are seen as a street friendly entry level pad for track use.
Low noise, and handle higher heat than many ceramic pads before falling apart. I can't say for sure they're better than Powerstop, or that they aren't though.
They are NOT a track pad, for that, you'll be looking metallic, but these are a compromise that can be abused a bit