I have used the Lexus service centre at Coventry for as long as it has been there. I am on my third Gs, ( and my 20th year)
currently a gs450h and these people have always been fair with me when other dealers wanted to charge small fortunes for servicing and minor fault corrections. I bought the current car from a non-lexus used car dealer and it had a full history but not a lexus history. It became obvious previous service agents new very little about lexus standards and even less about servicing this car. All is well now. They always give me a car for the day while they have mine and the centre is comfortable and always offer me tea or coffee.
I have tried other service centres but non match this one.
steve