I use it for wallhangings and small projects because I don't have a large space for ironing. I put a few pins around the outside just to be safe.
One caution: after sandwiching and fusing it together, I was smoothing the top some more and I felt something hard towards the middle. I thought I left a pin. I lifted the quilt top and there was a small hard piece of glue-small, round, size of a baby aspirin and hard as a rock. I'm so glad I found it before I started quilting--would have broken the needle for sure. Now I really smooth over the top and check for un-desolved glue pieces any time I use fusible. Just a suggestion; I've never encountered this again, but you may want to do a check before you start quilting.