Zero sugar. Specifically states no Sucralose, Acesulfame, Aspartame.
Pretty much THE best deal for whey. They only use whey isolate and 1%< sunflower lecithin (vs many brands that state whey isolate, but it's 5% whey isolate and mostly cheaper whey concentrate and hydrolyzed whey).
Compare prices. The other guys are charging more for poorer product. Available in 5lb cans and 10lb bags.
Not sure how strict you are about dairy, but Isopure unflavored at Walmart is what I have been using. 2 scoops is 50g of whey protein. The only other ingredient is soy lecithin.
Levels whey protein is sweetened with stevia leaf extract and monk fruit extract. It's the best tasting protein I've used, too. Vanilla cinnamon flavor is my go-to.