We have the Roadmaster Sterling All-Terrain. Works extremely easy and can't feel the Jeep Cherokee at all. Smooth operation.
As for an auxiliary braking system. I would not be without one, whether required or not. When the situation arises that I need to make an emergency stop. I want every single inch available to me.
I'm not worried about the every day/every stop. I am concerned about shutting it all down in as short a distance possible situation.
โLight hearted I take to the open roadโฆ Healthy, free, the world before meโฆ The long brown path before me leading me wherever I choose.โ - Walt Whitman