Very happy with Terial Magic Spray so far. The first time I used it, I didn't follow the instructions (I know!) and used it similar to a spray starch, (sprayed it on and ironed it straight away), and had good results with machine embroidery. Next time I followed the manufacturers instructions, and got a great result with a very complex machine embroidery. Every embroidery after that was done using Terial Magic, and I've always been happy with the results. So I can say that even if you charge in like a bull through a gate and don't do it "the right way", you'll still get a good result. It's easy to use, doesn't stink, and doesn't gum up the machine needles. Washes out like a dream. Now I'm looking forward to trying 3D flowers on a quilt wall hanging.