I have it and it does work. It comes with the adapters to fit most machines. Berninas, I believe, require a special adapter. After I bought mine & tested it, I saw a lady on Simply Quilts who was making her regular 1/4" foot function the same way the Curve Master does but since the Curve Master is clear--it's a little easier to see your fabric pieces lining up or it is for me anyway. It does take practice to make the pieces come out the same every time, though so if you're thinking you can immediately start sewing Drunkard's Path blocks & have them come out perfect--you're going to be disappointed. It's going to take at least 3 tries to get your "perfect" one and then some more practice before you get consistently perfect blocks.