Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works fine for the first year

I really wanted to love our Roomba. We even named her Rosie after that famous cartoon robot of the 60's. In the end the battery didn't last long and she would only clean bare floors and wide open spaces. She got confused one day and the company sent us a software update. After that she was never the same. She got confused a lot and just sputtered around. I'm sad to see her go. I would not buy another Roomba even for half the price.