I love QAYG quilts. The largest I have done is queen size (no need for a king). I've done several methods, block by block, section by section, row by row. My next onewill be a whole quilt where you only put 1/3 of the batting in the center, quilt that, then attach batting on either side, quilting as you go along. I also like Sharon Pederson's style where each block is quilted and then put together with reversible sashing. A quilt such as Double Wedding Ring is difficult to do section by section (although there is a version that can be done block by block - see "rings that bind" for info on that).
Fun method! Especially for those who need a large quilt, but are intimidated trying to quilt it on their home machine.