I want my quilt to not shift or move from the layers at all. I get excellent results from every inch being held together. No puckers, no winkles, and no stretching and no wavy borders. I won't get on the floor to baste a quilt. When the glue dries completely sometimes the glue will draw up causing wrinkles. The steam iron smooths it out perfectly. I use a roller bottle so the glue rolls goes on very thin and evenly. I use to use a paint brush but the roller bottle is so much better. My quilt is like quilting paper. Nothing moves out of place. Save me so much frustration and I never worry about puckers or excess fabric when I stop and start at a seam.