Instruct: Classify a given review into positive or negative sentiment.
Query: Great while it lasts!

I bought one for my office, attracted to good reviews and the nice finish with minimal plastic contacting the water. This latter feature is good for tea. It's not 100% but close. It worked great for a few months (about 3). Then the auto-off switch began to be unreliable. When the switch fails to shut off the heat, the water leaks out of that area of the pot and the water in the pot boils until I manually shut it off. I have never let it get to dryness. Luckily, I live in my office so no great harm done, but auto-off is a safety feature and if it starts a fire, that's a big, big problem. Aroma needs to make the switch reliable.