Ha...not bad at all actually, the CO2 really knocks back the sweetness in the wine and yeah it does taste of finely bubbled champagne not gassy raspingly dry prosecco/cava. Not surprised joe public was fooled, Lady antdad wasn't fooled or said she wasn't, next time I'll decant into an old champagne bottle.
I had to top up the SS bottle with ice to reach the correct level but I'd give it another go definitely.