I took mine to a local shop and I am satisfied. They used the ceramic pads and there is no squealing or stuttering.
A side note: The keyfob or the car’s system, one or the other, is not working so I have to use the key to enter my LS400. I took it to a Toyota dealer and they happily took down the notes about the issues I was having. They called about 6 hours later and said I needed to pickup the car. They handed me a bill for $75, a diagnosis charge, and the keys. I said, “So is she fixed”. The guy behind the counter said, “No we cannot work on the electrical systems on the Lexus because we don’t have the schematics”. I was flabbergasted and asked why he thought it was ethical to charge me for something that they knew they could not fix in the first place. They guy of course was a paid grunt that didn’t have a clue. I HATE TOYOTA DEALERS……if you want to go to a dealer only go to Lexus.