A few years ago I picked up the Apliquick system at a quilt show; it immediately improved my (turned edge) applique overnight. I eliminated all "bumps" around the edges of my pieces with the first use. I absolutely love it and never would go back to the many other methods I've tried. Kathy McNeil has a tutorial illustrating the use of the tools.
So far I've only used the fusible web that comes with the system, and it works well for me. Not so crazy about the glue stick, though; I prefer a dab of Elmers about the size of a pinhead; you can achieve that with a tiny metal cap that goes over the outlet of the bottle.