For what it is worth, we have a Brake Buddy that we have had for about 8 years and been using it a fair amount. We have used it with 3 different toweds. The ease of switching from one vehicle to another was/is a factor to consider. The instalation sure is no big deal and must take us all of aless than 5 minutes without any rushing.
Do what you want of course just wanted to give you another view.
2004 Itasca Sunrise 36', Workhorse
2003 Suzuki XL7