This is one of my favorite seasonal beers, one I look forward to every year. And I reviewed it recently:
Taste: Spicy essence (nutmeg, cinnamon, "winter" spices) blending with a rich and warming, malty brew. Very tasty, satisfying. A little spike of alcohol heat, and a Belgian strong dark thing going on.
Mouthfeel: Nice and chewy, not as full as a stout but more body than "medium." Pleasant warmth in the aftertaste.
Overall: The best Jubelale in recent years.