I got one with my sweet16. It does stitch such nice perfect stitches. I just never use it.
My stitches are a long way from perfect but they keep getting better and I am not finicky. I keep telling myself that I am sure someday I will need it for something. I thought that I would need it for ruler work, nope, thread painting, nope, tiny pebbles, nope. I am keeping it in the drawer by machine for when I figure out just what it is that I need it for.