My previous truck had a Tekonsha P3 in it and current truck has the factory controller. In my opinion the factory integrated controller is smoother and easier to setup....just turn up how high you want the trailer brakes. But again, the factory integrated just feels way smoother and even. Not that the Tekonsha P3 is bad or anything, but if I had the choice I would go factory integrated any day. Keep in mind that the Tekonsha and plug and play connector for your specific truck will be in the $200 range. I wouldn't even consider one of the cheapo $70 controllers.