Well, I'm glad to hear that some of you have had no issue. Unfortunaltely for me it's too late. After 6 months and having driven 6 cars all with the same issues, Lexus gave me my money back. So more more IS300 for me.
Anyway, I will say that Lexus customer support were very fair with me, so when they get these issues resolved I may buy another one, since they are actually great cars.
So happy driving.