The Good: Got the updated software in my LC last night, per TSB 0209-17, and the 1->2 shift thunk is no longer apparent. If I brake hard I do still feel a thunk going from 2->1, but the degree of 'thunki-ness' has been substantially reduced. It also feels as though the cruise control is WAAAY less aggressive in its attempts to control the speed. Previously it would more or less redline itself if I came over a steep rise in road and the truck picked up some speed on the downhill. Engine braking now seems far-reduced. All in all pretty pumped on the improvement.
The Bad: I paid 127.20 (120 in labor) to remedy an issue that arguably should have never existed, but upon driving it, I immediately forgot about the money, and just enjoyed the silence. The person I spoke with on the phone upon booking the appointment input the wrong TSB# on intake records, which ended up resulting in me waiting 1.5 hours before anyone asked me what the issue with my truck was... When they finally came to let me know, he basically told me that the tech couldnt recreate the hard shifting, I offered to drive it for them, but he declined my offer, and said they would just update it anyway... Upon cashing out, the advisor more or less spoke to me like a 16 year old, who had just learned to drive, informing me that it was a "learning" transmission and that some of the clunking I felt may have actually been user error. I just shook my head, and asked if we were finished, and if I could leave now. LOL. I heard it mentioned above, but it bears repeating; working with the dealership has been the only thing about LC ownership that I do not enjoy. /endrant