For all we know, the shuttering problem could just simply be an issue with programming. I know a few people on here had to have their trannys reprogrammed. I sure hope so, because in my car (and even the rental Focus they loaned me) it seems to shift rather rapidly through all the gears before you can even hit 60-70 mph. Not that that is an indicator of anything, but I think that some PCM updates are going to be in order in the next few months, if it's not a quality issue/design issue.
I too am not for bashing people (at least, I try not to), but in this instance, I wanted to give people a chance. Then, if I wasn't satisfied with the results, then I'd go to people like Natasha and her crew and make it be known to more than just the dealer and myself.