Going to disc brakes was the best thing I did for my camper, without a doubt.
I used to get white knuckles when approaching 6 or 7% grades on our cross country trips now I just laugh, even 10% is a joke now.
Also, they are overall so much smoother in operation then the drum brakes. I was ALWAYS fiddling with the adjustment on the brake controller when going from highway to traffic conditions and never could get them right. Always squealing grabbing etc., even after complete replacing the drum assemblies.
Ron W.