I like the Olfa with the automatic retractable blade. However, I notice my girl friend has an olfa cutter without the automatic retractable blade....you push the button up to cover the blade with this one. Because my girlfriend is ampidexterous (sp) she is able to cut, using this cutter with either hand. Makes cutting go much faster. I love to cut with her cause I do the right hand cuts and she does the left hand cuts.