Paper Piecing does seem to waste fabric. And I have trouble getting the pieces to go the correct direction without using a much bigger piece than I would if I pieced it the regular way. The only advantage I see is is getting a very detailed design to come out neatly. I have pp'd a 4" ladybug for a sweatshirt sleeve (with a full sized block on the front), and a couple of detailed butterflies, but would not try to do a whole quilt.