It's been about five years ago I made two quilts and one table runner using the book and arc ruler. I didn't have any trouble at all. I remember it was fast to make. It takes a lot of fabric! My first one I used muslin and scraps. It won viewer's choice at our local quilt show. My guild had a workshop using the book and everyone made a table runner with no problem. I put a lot of quilting in the ring space. I made and added one block a day. In a few weeks I had a completely finished queen size quilt. It is an expensive quilt to make if buying all new fabric.