Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Well... this one didn't last a month

I've used Vornado heaters for years, with relatively little trouble. I needed another after a recent move to the Sierra mts. This moded worked fine for a little less than a month, then simply stopped. I returned it. If you're a Vornado user you know the Co. doesn't replace a heater, it rebuilds them. After 2 weeks I'm still waiting for mine to be returned.