I have a Bernina 880 with the embroidery module and am in love with it. It's 1/4" matches the 1/4" on the Lil Foot I use on my Featherweights exactly. So I can take my projects to sew-ins and retreats and work with FW and come home and continue on with 880. It did take a little time getting used to threading the bobbin thread. But it was really worth working through the learning curve.