Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Broke after 2 months of normal use

We bought the Roomba Red in late March and now in early May, the brushes stopped spinning. I always take special care to clean off the brushes and make sure that they are in good working order. Now that I'm a lazy slug that doesn't like to vacuum, it breaks!! I'm very disappointed. I called customer service and they are supposedly sending new brushes, which may or may not fix the problem. I think the Roomba idea is wonderful, but the design needs some work.