This car performs and looks great. However, the nav system really stinks. Lexus decided there were functions that I shouldn't use when the car is moving. OK, I can then use the voice recognition system. No, you can't. That system can't recognize simple voice commands unless you are stopped and the fan is turned off. Useless!!
Power and gas mileage are great.
Obviously, the nav system. There was also surprising amount of road noise. Some people have said it's the tires, so I will see if that helps.