My first experience with a sparkling shiraz, first impression on pouring is
WHOA!!! 
, following by
WOW! mixed with compulsive giggling. As you may have guessed, I had absolutely no idea what to expect. After all, Champagne is made with Pinot, which is a red grape, and it comes off with barely a tint. Not so here.
This stuff was very cool

. Startling deep red in color, but damn! There are bubbles where there ought not be any! In a red wine!! Quite tannic, but amazing friendly and drinkable, huge berry flavors, and a delightful lingering finish. An outrageously fun experience, and would make a fantastic wine for brunch.
I had poured this with family, and reaction was across the board. Most of us (myself included) loved it. One hated it (sacrilege I think was the term she used), and a few were just unsure of the whole thing.