Dr. Pepper is by far my favorite soda. Diet Dr. Pepper, not so much. So when I saw Dr. Pepper 10 I got so excited because I was hoping it would taste good. I was definitely pleasantly surprised! I think it tastes great! It has a much more authentic Dr. Pepper taste than the diet version does. It doesn't taste like the fake aspartame sugars in most diet sodas. I think it's an awesome alternative to Diet Soda or full calorie soda.