I debated about purchasing this foot when I saw it demonstrated at a show. I am now glad that I did not buy the foot - there are several great videos online showing how to do curved piecing without this foot. Too many times at a show we are awestruck with so many gadgets - only to purchase them and toss them into a drawer. There were a couple of quilters at the foot demo that had purchased this foot only to take it to guild metings and trade them off. All in all curved piecing is totally doable without this foot.