I am making an wedding present quilt for my niece, and a while back I bought a few rolls of different size half square triangles at a quilt show. Well, this variation called for 84 3" hst squares, and I thought "oh boy", days of cutting 7/8" variation square terrors, and marking them, and sewing them, then cutting them. Then I remembered the hst roll. I followed the directions, using wof and in no time they were done! The expense is well worth it. Try them when you are faced with the 7/8" terrors.
Yeah, I am a happy quilter, saved days of work for me.