Gas mileage has improved tremendously since the engine is broken in. Currently getting over 22 MPG in crowded suburban driving, up from 18 or so. Still very, very happy with the car. No problems, comfortable in the front and rear.
Sirius radio, sunroof, seat warmers
Stronger bumpers. I backed into a sign post at about 5 MPH and caused some slight damage o rear bumper.
I love my Honda dealers service department. They rotate tires for $20 for four, and change the oil for about $33, the same as I would pay anywhere else, but do not pay them $100 to change your cabin air filter. It is a $17 filter at Auto Zone, and takes less than 5 minutes to change.
I had the same experience at Toyota for my wife's Sienna. It is obviously a huge mark up service.