IMO (and it IS only my opinion) the ReadyBrute/ReadyBrake system is the ONLY practical auxiliary braking system for towed motor vehicles.
It is simple, completely mechanical, relatively inexpensive, easy to install, does not require installation and removal like some of the electronic boxes, has never been accused (to the best of my limited knowledge) of burning up the towed vehicle brakes, has never (again, to the best of my knowledge) failed in the middle of a trip, and it simply does the job for which it was designed.
I would recommend that if the system you have does not have the breakaway feature, it would be a good idea to get it. Why have the braking without the breakaway, it doesn't make much sense, IMO.
Many people don't give any thought to the capacity of the safety chains or cables. Please do make sure that they have a working capacity that will tow your towed vehicle in the unlikely event the hitch should fail. The cables or chains should at least have the same capacity as the towbar.
CM1, USN (RET)
2017 Jayco TT
Daily Driver: '14 Subaru Outback
1998 Dodge QC LWB, Cummins, 5 speed, 4X2
2 Kawasaki Brute Force 750 ATVs.
Pride Raptor 3 wheeled off-road capable mobility scooter
"When seconds count, help is only minutes away!"