Not well suited for street use I've read but found them exceptional on track. Properly bedded in they're quiet and the ceramic dust easily rinsed off afterward leaving no corrosion behind.
Running mostly at Portland Intl. Raceway that's two long straights connected with six turns at each end, I was able to brake at least as late, usually later, with what looked and felt like more control and stability than most cars including several in twins running other pads and heavily modified compared to my nearly stock car. Most of my overtakes were a result of setting up the pass with late braking.
Running Motul 600, never encoutered any boiling, fade or soft pedal. I'd buy them again.