Instruct: Classify Amazon reviews into positive or negative sentiment
Query: So far so good, Good taste but mixing needs work

I switched up from Muscle Milk to this. I really did like the taste. It wasn't like downing a milkshake from some ice cream shop but from a whey protein perspective this was top shelf. The only one negative I can say about this, as other reviews have pointed out, it is very hard to mix. I used a regular plastic bottle with a lid and just shook it manually. I still had a tremendous amount of powder that had not dissolved. I kept shaking, no progress. I highly recommend looking into a better mixer or even maybe using a blender. Other than that, this is a great product and am very happy.