HPS's do dust, but they dust far less than OEM and the dust is more of a greyish color than the black/dark dust.
I've used them on 3/4 different chassis with no major issue. The only thing I have run into is on one car where I upgraded to larger 2 piece rotor that runs far cooler than stock. When it's cold & rainy, they take far longer to heat up than usual and can come as a shock to someone not used to the car.
They are also remarkably durable when not tracked.