Love the acceleration and the feeling of driving a "sports" car while getting decent gas mileage. Have owned two other Lexus vehicles and this vehicle continues the streak of flawless fit and finish. I've gotten many compliments and a few negative comments about having a "luxury hybrid". I chalk those comments up to jealousy. Gas mileage has been consistently in the 24 - 26 mpg range (and I have a lead foot sometimes). With Virginia's tax credit, this wasn't that much more expensive than the regular GS model and I get to use HOV lanes!
Navigation, XM Radio, Acceleration
Lexus (as well as other companies) need to get rid of the nag screen when navigation starts and allow at least passengers to use the touch screen when the vehicle is moving.