I have used my embroidery machine for quilting. It is especially useful for medallion quilting.
Some days when I just start in to quilt something, without letting the quilt speak, I can try over and over, rip out all my mistakes. Then when I calm down and 'listen' to what I think the quilt wants/needs the quilting can be completed very quickly. Scary sometimes how that works in my sewing room. It's as if I have a quilting gremlin. Better yet, maybe it is my own Grandma Angel sitting on my shoulder. I like that idea better.