The LaCrosse has a tight, responsive suspension and handles better than I would have expected. The headlights are powerful. I don't miss the Zenon projector headlights from my last car. It's subtle, well-executed and built, with the sleek body looking a bit like a concept car. I object to reviewers calling it "bland". I see it as elegant and evolutionary. I especially like the front grill and headlight design, which harkens back to the 1950's, but with suitable refinement.
The remote starter is a big hit with me and my passengers. The seats are very firm and supportive. The XM radio is a great addition.
I think it's time to retire the great 3800 V6. It's reliable and powerful, but it sounds a bit like a tractor. Let's put the new 3.6L V6 in all of them!