Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Can Opener

The Opener was a great buy, it works well..so well that sometimes I don't know if its working. But it works great, the edges are so smooth you never have to worry about nicking yourself or a child cutting themselves. Excellent buy, the only thing is I wish the packaging came with better directions on how to operate the opener. Its a bit tricky at first, but after a few times you'll be comfortable with the device and how it functions.