Give it a few months and then tell us if it is still a big improvement. Mine is at the Van Nuys service center now seeing what they can do about the shudder. We'll see what gets replaced when I get it back.
As an interesting side note, I got a Model X loaner. It's Signature #005. While driving on the freeway I hear a strange crashing sound and then a lot of wind noise. When I got to my destination I looked around and found this. It seems that this top glass piece just flew off at freeway speeds. Not good.
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