Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Inefficent

Received this item and put it through some trial runs - apples, grapes, mangoes, strawberries, and blueberries. On all items, there was a large waste of juice. It did virtually nothing to the mango, and left large unprocessed chunks on the others. Other reviews talked about wet pulp, but I thought it would be minor. I would say 10-15% of the juice remained in pulp in most cases, and 90% with the mango. Like I said, a lot of large chunks of fruit were in the pulp bin unprocessed. Based on other reviews, we thought this might be adequate for our use, and the low price helped. However, the waste will far outweigh the low cost. We are returning this juicer and will upgrade.