I have one and love it. I have quilted many quilts on it, using the walking foot that came with it, with no problems. I love the speed control for fmq, and for zooming down long straight seams, and I love the thread cutter feature where you can just rock back on the foot control and cut the threads. So handy! This machine has allowed me to piece and sew FAST. It doesn't like a linty bobbin area, tho. If you don't keep it clean down there, it becomes impossible to keep the tension right and make nice stitches. I have a good little brush that cleans out the lint, and I use fat pipe cleaners to poke down into the feed dog area to remove lint there. Every few bobbins you need to unscrew the faceplace and remove the foot, and clean well between the feed dogs. It makes a huge difference in stitch quality.