You'll be right Rod, just get it :D, take it out and put it through its pacers and see how it all works.
Put it in each gear, both high and low etc, and see how it feels, listen to the engine notes.
Many people won't do things like down-change when they're going down a hill, and then wonder why they run out of brakes, especially when towing. It seems they think they can only do that when they hit the dirt. An auto is for all intent and purposes, is just a fancy manual. You can use whatever gear YOU choose, whenever YOU want. We drive auto's cause we get lazy :D
Good luck with getting it :cool:
