cheap pads usually wear down quicker, letting out more brake dust. Organic pads are the softest, and created the most dust. metallic are kinda in the middle. ceramic mix are a step up, and full ceramic pads are the hardest, handle heat the best, and last a long time with little to no brake dust. So in other words, you get what you pay for. Get any parts stores premium cermaic pad, and you will be happy.