1. I used it to piece a Turning Twenty -- worked great, with perfect 1/4" seams. (I did it as a test, which worked.) Was very fast.
2. I used it to overcast around new fabric before washing; also worked great, and fast.
3. I used it to make satin pillowcases (satin REALLY ravels!) using the tube method.
4. I made satin capes for the grands using the rolled hem feature. Awesome!
Have fun, and use your imagination. Anything goes!