You will get loads of suggestions on this topic.
I personally am happier with my ReadyBrake system after using a Brake Buddy for over 10 years. So much simpler to hook up and unhook, and also gives proportional braking in all situations.
BTW, mine is set up so that if I come to a slow stop, it doesn't apply the brakes at all. If there's much traffic, I try to stop fast enough to apply the brakes so my factory brake lights come on as well as the extra towing lights.
More light, more safety IMHO.
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!