Instruct: Classify a given review as either positive or negative.
Query: Great Value!

Yeah right, I'm no sucker and I'd never pay hundreds of dollars for a mouth guard. This one is very comfortable and I highly recommend it. I'm actually on my second one because the first one got wore out from my crazy grinding. Fitting the mouth piece was easy and I'll gladly buy my third, fourth, and fifth plus, as I grind them away. Better the mouth piece then my pearly whites.