Did you add your own yeast? If so, you may have a 50/50 chance of having something good. If you did not add yeast and just relied on nature, it might turn out great, but more likely will taste disgusting. Either way, just taste it and find out. Sulfury/farty flavors are normal and will age out, if you get any of that. But moldy or putrid vomit flavors would not go away, nor will vinegar or acetone. Keep your fingers crossed and give it a taste.