That is just the bees knees! It looks quite intuitive to use: put in a picture, put the fabric in, load contraption onto sewing machine, start embroidering. Seems the only trick to it is keeping the movement of the embroidery piece even with the speed of the sewing machine, though it's probably only a little harder than getting good at free-motion quilting. (I'm trying to talk myself into getting one if I see it.
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Please let us know how it works out for you!