Attaching binding by machine to the back and bringing it forward is a lovely way to finish, particularly for people with health issues and can't hand sew a large quilt, or if you wish to finish quickly. I've done them both ways and have been pleased, however I still prefer the old fashioned way of hand stitching to the back. It really adds the "I love you" factor and when I'm giving the quilt as a gift I'm sewing every stitch with love.