Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It worked for a while...then broke.

I was so excited and happy with this unit at the beginning. I used it throughout the first winter season, and stored it away in the closet for the next year. The second year was not the same with the first. It started to leak all over the place! Too bad, the 1 year warranty had just expired. I now know why it is only covered for the first year...