My problems so far have been solved..the original problem with free motion quilting was caused by a bad adjustment in the feed dogs. the thread kept catching on it when they were down. The company finally figured it out. My second problem of quilting over fused material was solved by my buying a spring action quilting/darning foot. I had the regular one. And what a difference it makes. My machine now is making a terribly grinding noise but I don't think it does it only when I use coats and clark thread. I'll have to check that out. Hope this information will help you get your dealer to act on these problems.