I do feel for a Jamboo and some of the other unfortunate IS owners who are having issues. As this is an owners forum and they are owners they are entitled to vent their spleens when things go wrong. I think the issue is exacerbated when Lexus, who scream from the rooftops about their customer service have dealers who fall short of their gold standard.
However as others have said some of what Jamboo is unhappy about (door locks, boot space) was known to him before buying the car and yet he still bought it.
I was dead set on buying a diesel till it was announced that it was only available as a manual and from the reports on here I am so glad I didn't buy one. The IS250 was nothing but a dream, no problems, rattles or such like and as you will know I only chopped it in to buy an SC430, otherwise I would still be driving mine. The dealer while not perfect were very good, I'd give them 9 out of 10, while my local BMW/Audi/Merc guys would fail to register above 5 out of 10.