Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Broke in just over a year - dangerously!

I love having a water dispenser, and I got this one because it's cheaper than the Japanese brands. My mistake.The unit actually works fine for the most part. It boils water relatively slowly (much more slowly than a stovetop), and doesn't have temperature control. But while I had it I enjoyed the convenience of ready-to-drink hot water.Just yesterday the boiler just completely died. And not only did it break, it broke in a dangerous way.We got back and smell burning plastic, and found the plastic shell around the steel pot detached. Lots of pieces of plastic in the water. The button part separated. And had we not come back in time, it might've burned the house down.I refilled water just the night before so it didn't run dry.I expect it to break after the warranty like most electric/electronic appliances (sadly), but I didn't expect it to break so violently.Wouldn't recommend if you worry about safety.