I have one and I love it. You have to use it along with your walking foot. It takes a bit of practice to get everything together alright; kind of reminds me of when I first learned to drive cause you have to watch in front of your and watch to your right and left to make sure everything is coming together just right. I always hated binding and using bias strips 'cause I could never get it together right on the machine and ended up doing one edge totally by hand. Last Christmas I bought a generic one for my machine and I LOVE IT!!!!