This is a beautiful SUV, well designed for passenger comfort and with all the elegance and refinement one should expect from a vehicle in this price range. It has but one flaw --- it is NOT rock-steady at highway speeds in the wind and has more "slip stream" wobble when it encounters 18-wheelers than our Grand Cherokee! This is obviously due to its height/tread width ratio and would approach "perfect" if shaved down a couple of inches or (better yet) based on a wider platform. Overall a wonderful vehicle but I would NOT have purchased it had I tested its highway performce in advance.
Seating and overall comfort is superb. Interior and exterior finish are flawless.
To make this car "perfect" Lexus must find a way to improve its highway stability. Absent wind and/or slip streams it's a dream to drive on the highway, but maintaining highway speeds in turbulent air is a struggle not worthy of a car in this class.