I've found I prefer not to, and have been learning the appliquik method.
I glue the template to the fabric, then press under the edge all around. remove the template (use elmers school glue and it come off easy). then I trim the seam allowance to about 1/8" and use the special glue and tools to turn it under. From there you can sew by hand or machine (I like to narrow zigzag with invisible thread). The stick glue also washes out so in the end there is no stiffness. I'll use the elmer's to stick to in place to sew, that way I can reposition if needed, and it's not stuck down to the point I can't get under when hand sewing.
For the hand sewing, I may not glue the edge down, but pressing it around the template gives a really nice crease to work with.