What advice would you give someone starting this project? This sewed together beautifully. I was thrilled with how everything seemed to be matching up perfectly without a lot of fuss on my part. But once it was finished and I measured it, it was only 18" square instead of the 18 1/2" the directions say it should be. I'll just add some strips when it comes time to sew the quilt top together but if I were to do it over again, I would make the template for the outer curved/corner pieces a little bigger so that it would be easy to trim the block up to the correct size.