The trap works great!!  I was overcome with a chipmunk population that was rapidly expanding.  As soon as I planted a flower or bulb they would immediately dig it up for fun on their part.  They would climb into the flower pots and dig up the flowers.  I would put out an ear of corn for the squirrels and the chipmunks would eat the whole ear in one setting.  I have been baiting the trap with a sunflower seed under the tab on the trigger and adding a little chunky peanut butter.  Very effective.