I never used an Armada. My previous TV was a Jeep Liberty Diesel. My take, it is all about expectation. My little diesel performed as expected, and I probably wouldn't have upgraded yet if I wasn't doing high mileage trips. after 3500 miles in 2 weeks last year, I upgraded to the truck.
Bottom line. If you stay within your payload weight, make sure you have decent tires to do the job, stay within a good speed (I tow at 60MPH with the Jeep, 60-65 with the truck now), and not expect the thing to handle like a car, you should have decent luck with it.