I love the alcantara! On the wheel and shifter, leather is just a little too slick, and when you treat it, it can get a little slimy. Alcantara is perfect and grippy.
And as shown in this thread: Even after it gets dirty and flattened, it can be rejuvenated! The cleaned up pics in this thread look great! I'm going to order that Sonax cleaner and brush combo...
SIDE NOTE: The WORST material used in a V was the gloss black plastic in the 2nd Gen CTS-V's. If you breathed on it, it scratched. Looked at it wrong, it scratched. It was the world's softest plastic. On my 2010, I remember constantly buffing it out with Plastx and cleaning it with a soft cloth lol...