I have one. I have played with it a couple of times using apple core pieces. I just think there is quite a learning curve with it and I just don't want to practice, practice, practice with it! I will eventually make an apple core project and a drunkard's path. Whether I use this foot that I bought specifically for these projects, I don't know yet. Do a search on you tube for Curvemaster foot videos. They sure make it look easy and it does produce a nice curved seam!!