Hi there
I've just completed a 3 week, 5,000 km trip towing a 8,500lb 28 ft trailer with my 14 CC with max tow (which includes the integrated brake controller). I did the same trip 10 years ago with a 3,500lb 21 ft trailer and a 2000 Astro van with an aftermarket, time-based brake controller. I LOVE the integrated brake controller. Braking was so smooth it was difficult to tell that I had a trailer behind me. With the previous aftermarket controller I always had to worry about long braking distances and locking my trailer tires. Not once on the recent trip did I have that concern. For me, I will not go back to an aftermarket controller.
Bert