We've had the system on 2 different motorhomes. I installed the first system on our 2001 Winnebago Adventurer and 2004 Jeep Wrangler. We used it to tow the wrangler about 85,000 miles (the motorhome had over 100,00 miles on the odometer) before we traded the motorhome in for our current 2013 Adventurer.
We left the motorhome part of the system with that motorhome and purchased another for the 2013. We have another 25,000 miles towing the Jeep with the new motorhome. Both systems worked flawlessly for over 15 years.
We chose it because of the minimum amount of Jeep hardware to install, remove, and store. The TJ doesn't have much extra space so only having to install and remove a single air cylinder makes things easy. Also we wanted a system that was independent of the Jeep electrical system.
Personally I can't believe there's a more reliable proportional braking system on the market. However the initial install will take a day or more if you want a factory look. I ran all the wiring and tubing inside existing wire looms. Even the wiring for the LED on the dash runs through the factory harnesses and plugs. In addition the compressor and storage tank will take some room from a storage cabinet. In our case I was willing to spend the time and give up the space to install a quality system.
Hikerdogs
2013 Winnebago Adventurer