These changes will help the STS's appearance. The rear facia has finally been revisesd and given some character. There are a few chrome moldings added. One running along the top of the rocker molding, just below the doors. The headlamp units seem to be revised as well.
That side vent is one of the least attractive on the market today.
The grille is also revised, but everyone already knew that was happening.
The interior is also very well upgraded, but I think everyone knew that, too.
Sales have gone from disappointing to embarrasing. At least from now until its death, the car won't be.