Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sharp!

My sharp maker arrived 4 months ago, and after considerable use, I can say that it serves its purpose very well. It took a while to master the motion, but now my knives are hair shaving sharp. I haven't used it to its full capacity (scissors, needles, serrations, etc...), but as I do I will update you if my feelings change.