Organic materials were originally used on many older vehicles. Brakes made of these are softer than others, tend to wear out faster, and do not offer comparable performance. I think they're the dustiest as well.
I have a '99 Durango which is a very heavy vehicle. I've done the front pads rotors twice. The second time I got slotted rotors and EBC ceramic pads formulated for heavy vehicles/towing. The braking is significantly better (way better than the anemic OEM) but they don't brake well when cold. I...