Significant differences between 09 vs 2010 LS460?

[ZAPP]

Reading the Wiki, and looking at CarComplaints.com and Edmunds, KBB, Cars.com reading extensively on owner experiences with the 09 and earlier LS460 it seems the smarter move is to buy the 2010-2012 iteration.  Is that true?  The changes seemed more than mere cosmetic with the 2010 refresh - paint changed, electronics [some], lighting, etc.

And are the notorious "control arm" bushings, parts, etc still in play from 2010 ownward?  I do not want to be chasing driveability issues ad infinitum....

your wisdom is greatly appreciated!