i have drawtight activatorII's, as well as hoppy units in 3 of my trucks.
these are the 100$ units.
I have a sub 100$ hoppy that has the same features as the 100$ one with a more rudimentary digital display.
I also have a prodigy in one of my trucks.
bottom line? they all work and put power tot he brakes.
the prodigy is the nicest with a few extra features like boost.. etc.
the , arguably, cheapest of the bunch, the hoppy has made several multi state/multi-thousand mile trips with a 16' tandem big tex trailer to haul antiques back to my house.. nearry a problem with the controller.
soundguy