I have a 2012 TL with 2300 miles now. The brake pedal travel is ideal when braking and modulation is the best I have experienced on any car. When nearing a stop from exremely low speed there is no tendency of slip/stick which is a common characteristic. My question is what type of pads are used...are they ceramic or organic and what can I expect for a replacement interval with normal use? I am a fairly conservative driver.