I received the rotors and pads quickly. I installed them on my BMW 328is. I have to say that ceramic pads definitely reduce the brake dust on my wheels. However, the rotors warped a bit after just under 1,000 miles of normal (mostly highway) driving. These are definitely not the kind of rotors to buy for aggressive riding like autocross. If they get worse I'm sure I'll be replacing them in another 1000 miles or so.