[BlackSTX]

It's worth the wait. Now it's not slam you back in the seat improvement over the canned tunes; but then you're not changing parts, just refining the programming, and that alone is an improvement.
I was missing the improvement in shifting, and had tweaked my firmness and lockup quite a bit previously; but I'm happy with how it is responding right now. the TC used to unlock all the time, even if you so much as thought about stepping on the gas, or hit the slightest bit of a hill. It now has enough power to remain in lockup and cruise its way along, without unlocking all the time. That alone is always worth it; I was really annoyed by the constant hunting, and the programmer has thankfully stopped it. The responsiveness is a plus, and the improvement in the sound of the truck over stock is definitely noticable.