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

The cutter broke 15 minutes after I started using it! The end of the cutter was not tightly crimped. I was very gentle using the cutter using only low pressure per the instructions. It did a good job cutting the styrofoam but it was slow. The problem is that when I pulled it back while cutting in the styrofoam, the cutter end pulled out of the crimp near the handle. This broke a wire in the cutter which shorted out and blew a circuit breaker. There goes my $20.00!