i bought one for my Viking and have only used it once so far. I liked the fact that my stitches were even on the front and back, but found it hard to keep the sandwich inside the bias strip. It came with NO instructions. I also couldnt figure out the corners which was frustrating. I havent given up because my hands cramp up on hand sewing now days, so i would like to make it function correctly. I think I will search the net and see if i can find more tutorials.