I have had 2 Fords with the IBC and they have worked flawlessly. You will not experience any 'grab' as you do with aftermarket brake controllers. It is so smooth that when I started using it the first time I thought also it was not working. It is very proportional to the amount of brake pedal pressure and will only apply the amount of brake gently that you are pushing on the pedal.I totally disagree with BenK. The IBC is plug and play totally. Nothing really to set up. I set mine at 9 and forget it there. Have been using the Ford IBC for 5 years now. I have set it once five years ago and it works perfectly.
