Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time

I bought this thinking I could save some time and sharpen my knives and axes "the easy way". Lesson learned that there are no shortcuts. The sharpener put a slight edge on my pocket knife, but did very little for my estwing camping axe. It is a fairly cheap plastic case with ceramic wheel inside. It was not expensive however neither is a wet stone. There is no substitute for learning to sharpen your knives/tools with an old fashion wet stone. I generally do not rate items, but feel compelled to say that I would not recommend this.