Over on the RV.net forum the Prodigy was highly recommended, so I went that way. It is true "plug'n Play" on our trucks. Buy it with the Dodge wiring harness and installation is under 15 minutes, including drilling two holes in the plastic lower section of the dash, just forward of your right knee.
I perfer that location so that I can follow my leg, just past my knee, and quickly find the controller without taking my eyes off the road. If you need to find it in a hurry, you will not want to be looking around for it.
After I set up the controller for my rig, the Prodigy has performed flawlessly. Others like the BrakeSmart are very good also, but more expensive and I don't think as easy to install. Prodigy does not work with hydraulic-electric brakes on some trailers. Not too many trailers have that kind of braking system.
A properly loaded trailer connected to a properly optioned truck and controlled by a high quality brake controller is much less stress on the rig and especially the driver!!