I purchased a used Armada last month and have been impressed by the solidness of the vehicle thus far. In my 8500 miles of driving the vehicle, there have been no problems except for a wear mark on the drivers armrest. Navigation, homelink, DVD, transmission and engine have functioned seamlessly. The blindspots are not as large as I thought with the help of the side mirrors possioned properly. I am 6'-10" and fit quite well comparred to the Toyota and Ford equalls. No regrets in purchasing the Armada and I would do it again in a heartbeat.
Nav, Engine, transmission, rear parking sensors, lift gate and the ability to customize intermittent wipers, alarm settings.
At cruising speeds, shut off half of the cylinders in the engine to improve fuel efficiency.