After 20,000 mile, my brake sensor light kicked in(I'm heavy footed ). So I opted for EBC yellow stuff front pads and Textar rear pads which came with the sensors(wanted EBC yellow rear aswell but there is a 2 month wait). I also ordered front brake sensor for £5 each. All in, the cost was around £350 including labour....not sure how Lexus can quote £1000 during my regular visit. Will post an update on how yellow pads hold up.