just installed the P3 on my gigantor 2007 tundra... it's the first brake controller i've used since the early 80s, one thing i can say.......they've come a long way with these things...
i chose the P3, as i'd heard good things about it, and thought the more intuitive display was a nice feature.... not sure how any of the other brands compare, but this one seems to do the job well.
with the harness, the install took all of 5 minutes.
still not sure if i've given it the proper setup, but fine tuning is easy.
2009 Jayco 19H, 2007 Toyota Tundra....
yeah, i have plans for retirement... i plan to turn my on-off switch to 'off'.....