I haven't touched the stuff since I was 10. Welch's, along with pretty much any processed fruit juice, is just too sugary for me to enjoy. Beyond a stiff margarita, I've found the world of frou frou mixed drinks have been lost on my palate. I don't judge those of you who enjoy all those syrupy, rum-infused rainbows garnished with alcohol, but...I take that back. I do judge you. I'm a booze, juice, food and general topics snob.
But I had to test the claims of Spike Your Juice, a yeast-based kit that ferments any 100% fruit juice, so long as it has 20G of sugar or more per serving, into an alcoholic brew with anywhere from 4-14% ABV. That puts the resulting potency somewhere between beer and wine. With a healthy 30G of sugar per serving, Welch's is a prime candidate for home fermentation.