I have to say that I really find driving the IS 250 truly effortless! What a great car to drive. I am a 6'2 man and have so much room in up front to drive. YES the back seat is cramped but as a single man that was not a great priority for me. The Lexus is quiet, and an all around great car. I do not find it lacking in power at all. Save your money, and insurance cost and stick to the 250 as opposed to the 350. Great car, I am sold on Toyota products from here on out.
The comfort, and the Pioneer stock stereo is great.