In the front, the TT is just ok. It's better than a LR diff, but not by much. It does give a little more traction assuming that you left foot brake. Otherwise, it just seems like an open diff. If I make turn from a dead stop, I can get one of the front tires to spin and the TT is doing nothing. Offroad, it helps a little, I guess. In Moab, it's pretty easy to see the effects. Left foot braking made the difference in being able to clear some ledges.
My biggest gripe is the supposed on road advantage with the TT. It's self centering nature is a pain in the ass on an on ramp. If you are on a long turn with partial throttle, if you change the amount of throttle, the steering wheel jumps around.
If I were starting over, I'd skip the TT in the front and get something else.