Instruct: Classify the given review into positive or negative sentiment.
Query: Just in case anyone is as stupid as I am

This may be the best product out there ... I wouldn't know because I had no idea what I was ordering. It didn't dawn on me when it said pneumatic that I had to have an "air supply" ... plus it doesn't have any grinding points. I just wanted something to etch my name on the metal prints of my artwork. So back it goes and I'll look for something that's simple enough for me to understand what it is and how to use it.