Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Deal if You Have Amazon Prime!

The free two day shipping with Amazon Prime is AWESOME! But, if you can wait, you canfind this stuff on other sites for a better price. The product itself is of great quality, very sour and acidic though, so if you can't handle the acidity you may want to consider buying a buffered vitamin c powder. Enjoy all the amazing health benefits of high doses of vitamin c for a great price!