EBC Red Stuff Brake Pads
The pads appear to be well made. Stopping power is better than the originals on the car, and, best of all, they don't leave the horrendous, sticky brake dust common to German made brake pads. I now have the only Audi around that always has shiny front wheels! Can't really comment on installation because I had that done at my local shop. Have to see how durable they are, presently have 2,500 mile on them.
EBC Yellow Stuff
The low dust feature of ceramic pads are nice, but the lack of stopping power in the end really made me look for something else. These pads have a very good initial bite and a nice linear feel while stopping. Yes, these are dusty, but brake pads are supposed to stop the vehicle, not keep the wheels clean.