Smart Touch Automatic Can Opener 5 "There’s a knack." Claire Golding 29 January 2019 I am just about to purchase a second can opener to use in the caravan. I was amazed to see so many bad reviews. I have had my original one for over 5 years with no problems apart from the batteries need replacing. There is a knack to getting it to ‘latch on’ And very occasionally there are cans that do not want to be opened. Dented cans will not open either. Having said that those cans are VERY difficult to open with any device. I think this is a great can opener.