Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: terrible design

The weight distribution is high, add to this a small footprint and your (badly mixed, more later..) drink will fall over if you sneeze at it. The lid is full of nooks & crannies, some cavernous structures are impossible to clean without a water-jet tool, and they all fill up with DRY ingredients that never make it into your shake! I put half a teaspoon full of Spirulina on top of some Whey Protein, and found that almost ALL of the Spirulina was caked into the lid with a layer of Whey Protein sealing it away. My shake wasn't green in the slightest. When I went to clean it, I found even more powder caked around the rim, hiding under that poorly designed mixing blade! I spent another 5-10 minutes squirting water into the deep crevices so I don't get a mold problem after the first use... Don't buy this if you're thinking about making protein shakes.