Blue Ox Sway Pro, how it functions against sway

I battled with the Blue Ox for a year. I went as far as upgrading from a F150 max tow to a F250 with no improvement. In the end after many calls, email etc with BO I ended back at my dealer and switched to an Equalizer.
RV Tech told me that on some toy haulers and longer trailers they have had issues with sway control. Can't really predict when or on what trailer it will happen.
Some cases it works really well, others it may not. Not every hammer works for the same job.