I bought the 1/4" foot with a guide for my Bernina as soon as that foot came on the market. I love it! When I got a Featherweight, the first thing I did was order a 1/4" foot with a guide. That is the only foot I use on my Featherweight. Now, I do all my piecing in the Featherweight. With that presser foot, I get what I consider a perfect 1/4" seam.