A lot of wineries source the same Welch's Concord juice to make their wine, so yes you can make a nice wine with it. But uf you can find some concord grapes toss some of those in too. I make concord wine from juice each year. Is a nice table wine plus I love to blend with it sometimes. Personally, I think if you are making wine you shoyld use wine yeast..better outcome in majority of cases.
Motto: quel che sara sara