We have had this car for a month now and simply love it. The external styling is best in class and the interior is top notch. Every detail is well thought out and the fit and finish is outstanding. I can understand why other reviewers focus on the power, but I consider this car a luxury car that is sporty, rather than a pure sports car. We test drove the A4 2.0T Quattro (used to own an Audi allroad) and really liked it also, but the interior seemed outdated and the engine, although better kick, did not seem as refined as the IS250. And, in the end we didn't want to be in the Audi shop all the time like we were with the allroad. Bottom line, Lexus really did a fantastic job on this car.
Interior fit and finish. Exterior styling. Instrument panel. Air conditioned seats. Puddle lamps. Excellent handling and smooth engine/transmission. Extremely quite and luxurious. Great handling. Very comfortable seats - even for long distances. Good gas mileage.
Just a tad more pep would certainly be nice. Don't mess with anything else!