I realize this is an old thread, but if any of you have a car that hasn't had this TSB performed, get this done! I didn't have all of the symptoms, but "transmission shifts too late/too early/too often" definitely applied to me. Wow, what a difference! My dealer applied the latest PCM and TCM revs for me, and it's much like Freddy said - much more crisp and "peppy", plus the car is much more sure of what gear it should be in. Highly recommended!
Brad
Brad