I have electric drum brakes on a camper weighing about 1500kg fully loaded with a Prodigy controller. The Prodigy has some nice features and you can adjust the braking intensity for dirt or paved roads 'on the fly'. It also works in reverse, and has a 'hold' feature when the vehicle is stationary, and you can set it so that it sends a reassuring initial braking pulse when you first touch the brake pedal. The braking power is adequate, but is not enough to lock up the wheels in dry conditions.
I like the adjustable features, and it is a lot more efficient than the override device on my old camper, which was also a pain every time I wanted to reverse the camper.
Adelaide, South Australia
Happiest where the desert meets the sea