I've had my tune for about a week now and I love it. Went from 5 Star 93 performance tune to this and it's amazing the difference. They are equal in power and acceleration, but the 5 Star tune was really kind of jerky and the shifting was a little weird. Initial throttle input with it was very abrupt and really just annoying, and if you drove at a constant 30mph, or 40mph, it didn't know what gear to be in. Plus when I would really get after the truck off-road with long periods of WOT I had two separate instances of limp mode.
The SVC tune shifts crisp, but not so hard it feels like the drive lines coming apart. WOT downshifts also aren't clunky anymore like they were with my previous tunes. Plus it doesn't search for gears constantly. It picks the higher gear for just cruising and sticks with it until you apply heavy, abrupt throttle. Plus, in the 2000 or so miles I have on it, I went from 11.8 to 12.7. And that's with 4wd and dirt every day.
Definitely worth the $. They did their homework with this one!