My dh bought this for Valentines Day for me and I am very happy with it. I love the grids which make it easy to trim to size. Also it folds in half for easy storage but is not at all flimsy. When opened, the trimmer has a valley which can be used to help create a crease. Open the trimmer, lay the paper flat, and run a ruler or other small item down the valley. There is your crease. I love my trimmer.