I did a Cotton Theory a few years back. I enjoyed it, but it takes huge amounts of fabric, as all the seams are supposed to be 1"; that's ONE INCH. It's wonderful if you don't want to, or can't any more, handle a big quilt. It's really QAYG, and each time you put a row together, those pieces are all finished. At the end you put the two halves (or thirds, it's easier to do that last seam only a third of the way in) together, and the binding can go on in the usual way, or you can add "sidewalks". I did all the methods she showed: highways, freeways, intersections, one way streets and sidewalks.