Of course everyone's driving situation is different. I have had only a little experience with the T/H on my F350. The times I have towed, I have used the T/H feature, BUT I was heart-in-throat when I used the foot brake to slow down on a hill and the tranny shifted to a very high RPM. I mean screamin'! I turned off the T/H to get the engine down to a more normal sounding speed. I'm about 20K, truck and trailer, loaded but not a big load. I have found times when I turned the T/H off and felt more in control of towing than with it on. (Please, no flaming!, Just my opinion)