Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Like a hot knife through butter

My wife has complained about every can opener we ever owned. At Christmas I went on Amazon.com and bought the best one I could find, this OXO 58081. It is worth every penny, it cuts the cans open with ease. The oversized rubber-like twist knob is very nice as well. Of the 6-8 can openers in the junk drawer, this one is now the ONLY one used. The others have gone in the trash.