I had my dealer apply the TSB. I noticed when I'm giving it gas it seems to shift later than it did before. It also doesn't "crunch" while downshifting anymore. I think it still rattles a little when shifting up from 4th to 5th (or maybe it's 3rd to 4th) but I'm more than willing to deal with that. I can only hear it rattle when my windows are up, no heat/AC, no radio, and when the phase of the moon is a waxing gibbous
That's my two cents.