Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best floss

So the Glide floss is too slippery and don't think it does a good job getting out food and plaque. This is easy to use, has a little bit more friction so that it does a great job cleaning between the teeth. The only drawback is that it's got a certain length that is pre-"cut" so I feel like I use more floss per use than needed.