JoAnn's has some very good quality fabrics, as well as some that are not as good. The price usually alerts you to the difference. They carry a wide variety of muslin, some of which are great for quilting, while others would be better in other types of projects. I like the Legacy Studio Premium muslin and have bought it at JoAnn's, as well as on Amazon. I sometimes use it in piecing, and sometimes on the back of a quilt.