I love my Viking Rose. The blanket stitch is indispensable in all sorts of appliqué, but little more so than when working with 30's fabrics. My machine takes two stitches along the line I'm sewing, then swings out once to the left, and back to my stitching line. Its default length and width make for a very tiny stitch, so depending on the project, I like to adjust it so it looks more like a hand-done blanket stitch.
Hmmm... time for me to track down a Sunbonnet Sue block for a prime example of how it can look when adjusted....