I love this car, this is my second, and will go with it again. One thing I truly despise, which even has been a source of embarrassment for me (in front of my girlfriend with Droid) is Lexus GPS. It is so unreliable, I just gave up on it entirely and now rely on Google Droid Navigation.
Which raises a question of why I paid extra 5K or so for Navigation package. Huge, huge embarrassment for Lexus. And touch screen works worse than anything I have experienced ever. You will end up having to press and hold each key in alphabet to enter an address.
GPS: use Google navigation.
Touchscreen: Lexus, try using iPhone, for G's sake! This is how touchscreen should respond!