I have a Bernina aurora 430 and love love love it ! Yes I use the bsa and love it as well. My friend has a pfaff and I'll admit like the sound and usually do a seam while the walking foot is on the bernina when there sewing/quilting. My second is a brother that I leave up for seaming when have other feet on the bernina! sure you will enjoy either but if you are looking to fmq then I'd go with the bernina . Have fun !!