Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gritty and Unpleasant

I have been making protein smoothies for years and have used every type available. I've been trying to stay away from animal-based proteins and thought trying brown rice would be something different.I was not satisfied on any level with this stuff. It did not have a high protein amount per serving and it tasted gritty.I usually make it with soy milk and fruit in a blender. Usually it is delicious, with this protein power, it sucked.