I upgraded from RX 300 to the LS 430. To say that I am delighted with this car is an understatement. I can't wait to go to work every morning so that I can enjoy my hour long drive to work. With the rock solid reliability, the tremendous value for the money, the German rivals offer no competition. At 60K it is a bargain for all the features packed.
Mark Levinson, Blue tooth, the ride, the interior quietness
Automatically lock itself if you walked away with the smart key with no one inside the car. Cannot think of any other improvements.