I just got two 5 pd. tubs of it. I was using GNC pro performance whey protein and it was pretty good tasting. This Ultimate Nutrition Prostar is not so good. I don't mind the flavor not being as good, but does that mean it's lesser quality? It looked slightly clumped in the bottle. It's not out of date or anything. I wonder if the 23g of protein it claims to have is accurate?