Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An expensive robot that may not work!

This is not "Rosie" from the Jetsons. After over two years of use, the machine will only start up 10% of the time. Very disappointing for an expensive little item. On top of that, I have spent hours with iRobot customer service, trying numerous "fixes" that often don't work. I bought mine brand new for almost $400. Ask yourself, is it worth $200/yr for an item that won't reliably work? You gotta really hate cleaning floors to put up with the hassle of this product.