Instruct: Classify Amazon reviews into positive or negative sentiment
Query: amazing... when it works

This is the second one of these I've purchased. The first one was AMAZING. It was so good that even though it stopped working after a handful of uses, I bought another one. The second one does not work at all. I tried 2 different brands of batteries (yes, I used all 3, I know theres a battery compartment on the back), and it doesn't work. Unfortunately I didn't get to use it until about 2 months after I bought it, so it's not under the 30 day warranty the company offers. So buy it if you dare, because if it works, you're in for a treat. But try it as soon as you get it because if it doesn't work there's the warranty.