The NAV system is much worse than the 430.
To push a button on the screen you have to press the screen and then release the finger press before the system acknowledges the button press.
This effectively doubles the amount of time it takes to enter an address.
There is a knocking sound that is an inherent design flaw.
The sound is caused by the fuel pump.
The dealer repair shop at first pretended they couldn't hear the sound.
Then they admitted it was a design flaw they couldn't rectify.
De-contenting is a term that means the manufacturer has removed features that used to be there.
This model has been decontented from the prior 430 in many ways.
The rear camera is nice.
Put the storage back in the cockpit.
Cup holders, under-seat storage, glasses compartment in dash, etc.
Fix the unresponsive push button screen.
The screen is very annoying compared to other consumer devices.
Return the car following cruise control that was in the 430.
Eliminate the very annoying knocking sound from the fuel pump.
Use the industry standard seat cooling.
I live in Texas, and it gets hot here in the summer.
Lexus chose to use very limited seat cooling.
I spoke with Amerigon (who makes the seat cooling for Lexus) and they told me Lexus limited the seat cooling because they couldn't imagine why anyone could ever want it!