The worst was when I washed a new quilt, it totally puckered. It was like seersucker all over. I think it was the thread but it could have been the batting, who knows. Being a new quilter I was devastated. But I put it in my pile of quilts to be given away. When my sister in law chose it, I told her it was an experiment and that was the look I was going for. She loves it.