After trading in my Jaguar S 4.3, this car is a pleasure. Scheduled service and XM radio install were the only service visits. Treated like royalty in the service and sales departments. The ride is unmatched. The drivers seat has a crazy number a possible adjustments including "depth" for taller or shorter than average drivers. Lexus has thought of everything.
It is hard to pick just one with all the wonderful features. I would have to pick the rear camera. Invaluable when parked at an angle next to a SUV. You get a panaramic view of what your bumper sees.
Offer different voices for the navagation/voice command system. She can get a little annoying at times.