First, the Whale of a Punch series is easy on the hands, which as a person suffering from arthritis I appreciate. Second, the nesting punches take a lot of the guesswork out of measuring when you are looking for proportional cuts. I wish they made them in even larger sizes!! Third, they are easy to handle when you turn the punch over to center your cuts on a pattern or photo, etc. I am working on collecting the entire series of Whale of a Punch punchs!