I have several of her rulers, and I do like the results; my only issue is that one does have to pay attention to the directions as they are not always simple and straightforward. But, once you get into the rhythm, the results are perfection, and if you tend to be a stickler for accuracy in your blocks, then you’ll be thrilled with the finished product. I would recommend her rulers to anyone who is interested, and I dont find the trim down method any more wasteful than any other method and far less wasteful than the a accuquilt.