This is our second one we've purchased in one year. Both start grinding, clunking, and working only when you are pushing very hard on the can while it's turning. These are both pieces of junk. Never had a problem with an electric can opener before. To buy two of the exact same brand and have this problem? That tells me there's something wrong with the design. Never buying B&D kitchen electrics again. Performance Within a month, both times we bought this can opener, it stopped working and was extremely loud, clunking, and jerking. Durability Lasted 3 weeks with the first one, 4 weeks the second one. Design The design, in theory, was awesome. Tall cans would fit underneath it. Unfortunately, it didn't work.