I wouldn't get a Bernette. It is not at all comparable to a Bernina! Janome has a better reputation than Bernette.
If you are thinking of the blanket stitch for machine applique, I actually prefer a hem stitch. Blanket stitch is one straight stitch followed by one zigzag, I think; hem stitch is three straight stitches followed by one zigzag. Don't know about the blanket stitch, but to use the hem stitch I have to mirror image the stitch. (Not all sewing machines will have this feature.)