Sheryl M, lots of machines have the serpentine stitch but most of them are not adjustable in length or width..or only marginally adjustable. I wanted to be sure you knew this even though i'm pretty certain that the 6700 is adjustable and would do all you want out of that stitch. I too have used it a lot and it has saved me from needing to send some quilts out. Of all the "quilt stitches" available on machines today, i use often the buttonhole (applique stitch), feather and serpentine--so much so that I would not want to buy a machine without those 3 stitches and need them to not be fixed in length and width. Congrats on your pending purchase of the 6700...its one that you will keep and use forever.