Hi Teddy, here is my pennies worth. Mine is the six speed manual IS200, i have also had test drives in the Auto IS200 and the IS300. I found the four speed auto of the IS200 was never in the right gear, they are talking of changing it to a five speed sometime. The IS300 was totally different, perhaps as it had more power and a five speed auto. I liked using it as a manual box also, the only complaint was using the paddles and trying to change gear going around corners are roundabouts. Lots of wisted arms.
With my manual i often froget what gear the car is in, but it seems to pull in most gears, so its as good as an auto.