Instruct: Classify Amazon reviews into positive or negative sentiment
Query: unbelievable!................

.as the owner of plush light silver carpeting and a cat that became ill with nonstop vomting for four days, I read reviews and took the shot.....with the first pass, I knew it was a great machine!.......heeding the advice of other owners, water was heated first and a scoop of Oxiclean was added to the supplied cleaner. Wow!.......My carpet was only spot cleaned for the eighteen years down in my living room; it looked almost new!........very little effort involved, go nice and slowly with it ad you too will be delighted!......easily handled, easily cleaned, easily stored.......what are you waiting for?