While I agree in general with you Eric, I must say in the almost 10,000 miles I have done in mine, it has been perfectly reliable and comfortable, as well as damn fine looking!
And that is my point; It has the same seats, stereo, sat nav, interior trim, exterior panel and paint, wheels, brakes and suspension as a IS250.
What I am saying is that, while it is important, the engine of a car is not the be-all and end-all of that car, and in all other respects my IS is all Lexus.
I will give you an example; There is another thread on this forum where I share my thoughts on a new IS 200t F Sport. My main concern was that the ride was too hard and the seat too uncomfortable for my liking. Anyway, despite this is issue, I still think it is a damn fine car and a proper Lexus. It is just that I personally wouldn't choose the F Sport because of the suspension and seats.
I just think some people on this forum overreact when they hear IS220, and I am sure there are plenty of perfectly happy 220 owners out there.