anyone have an F-150 with pro trailer backup assist?

[Jim in CT]

So next week I get my new F-150. Bought it to tow our camper, maybe someday to tow my dream center console.

It has a feature called pro trailer backup assist. Does anyone use this? Is it a big deal? In the couple of videos I saw, it looks like you use a knob instead of a steering wheel, but I can't figure out why that's a big deal. I know which way to turn my wheel to get my trailer to go where I want it to go. I know there has to me more to it, because there's a few measurements between the truck and trailer that you enter into the truck's computer, and if the knob simply replaced the steering wheel, you wouldn't need to do that. But I can't find a video that shows me what it does for me.