I bought a 570 last spring, to replace my 153. I thought the larger throat space, stitch regulator, dual feed, and better lighting would make quilting easier and more enjoyable. I was wrong. I don't like the 9mm feed dogs, especially as I will never do any machine embroidery. The learning curve is a lot steeper than for the 153. I feel intimidated by the technology. If I could sell it, I would.
Leslie