Self explanatory. I have the AirMatic suspension, which probably helps.
Bottom seat cushions are long enough for taller drivers. Padding is not too firm or too soft. Excellent support and an upright, easy-chair seating position, instead of having to extend your legs horizontally to get legroom. Results in no low back pain.
The Diesel engine is extremely smooth and climbs mountain grades with amazing ease. Getting 24-25 mpg on trips and 17-18 mpg driving around suburbia. The new EPA mileage estimates are very accurate.
Actually, the brake feel is only so-so, but the overall safety, especially crash protection, is superb!