I'm a fan of the Oxo can opener, but my wife hates it. It cuts around the side edge of the lid, so when you're done, neither the edge of the can or lid is sharp. I think it doesn't work that well if you don't have a good amount of strength in your hands, which is why I think my wife hates it because it doesn't work that well for her. It might also be because it's about 5 years old now so maybe its cutting blade has dulled a bit.

Really, I'd recommend an Oxo product for pretty much anything...