Seat height: You must be very tall! I have the XLE with upgraded seat package, and I drive with the seat fully raised, and I'm 5'11". My g/f is only 4'11" and doesn't like how low the passenger seat is; she has added a cushion to the seat to raise it up a bit. I would pay extra for a fully adjustable passenger seat.
Heated Steering Wheel: Your observation is correct, but it's consistent with what I've seen in other vehicles. I believe modern steering wheels are designed to 'snap' during heavy impact, and the snap points are such that the heated wiring doesn't go beyond those boundaries. Still, I wish it were all around! I live in AZ and CA, and I must admit, I love the feature!
When in Auto mode, how do you know whether the system is in 'recirc' or not? One of MY pet peeves is that in 'auto', it doesn't tell you what setting is 'current'; same for the fan setting - it just shows 'auto', rather than actual chosen.