I cannot say enough about the performance of this truck. Purchased for hauling a 16,00lb 6 horse trailer. I have done 4 2500 mile trips in this truck, basically driving none stop each trip, and never had a single hiccup. Power, braking, etc. are excellent. Pulled through the Rocky Mountains without any drama, basically you forget you are pulling a trailer with this truck. My trailer brakes went out on one trip and it was not an issue with the tow haul mode, and the trucks braking power. The truck pulled a loaded trailer in excess of 85 MPH effortlessly.
Favorite features are the engine, tranny, and tow haul. OnStar is great to have. The phone really comes in handy when you lose normal cell service.
I would improve the exterior styling. Fords appear to have a better finish, and a more consistent ext. style. Turning radius could be better. Navi should be an option. The wheel trim on my truck has begun to rust on the wheel. Better int. storage. Air suspension may help for ST's