If I remember correctly, the TSB replaced the front motor mount, and 2 of the bushings holding the radiator in place. I also think it applied to the '03 and some '04 models only - I know that my '05 didn't "qualify". Whether the TSB fixed the problem seemed to varied depending on the person. If it really was a mount issue, and the vibration was "more than normal", then it likely fixed it. But for those with "normal" vibration level, it did nothing to help it out. Again, "normal" is something you'd have to figure out for yourself by comparing with others.
In terms of the steering wheel visibly vibrating - I actually could see that "shake" in the worst of vibrations when mine was new - and others did it as well. But it's not like shaking up 1/2" then down 1/2" - but rather the shake to the level that you'd get ripples in a water bottle. It can be unnerving since you're expecting complete isolation from the motor itself, but with a 4cyl of this 2.4L size, the idle is what suffers. In my case, once you brought the RPM's up above idle level, even only 100 rpm above, it became smooth as silk. That's how I knew it was just the nature of the beast...
