the nice thing about cotton theory quilting is that there are two "right" sides when you're done. You need to use complementary fabrics (because one side will show both front and back fabrics) but the end result will be two "right" sides. I took a class from one of her certified instructors and made a table runner. It seems that each block is a little time consuming because of the techniques and quilting patterns she recommends, but if you totaled the time it takes you do do the top, sandwiching, quilting and binding on a traditional quilt, you probably spend the same amount of time on this technique. I liked the possibilities this technique offers for quilting as you go. and also like the fact that, unlike rag quilts, there are no raw edges left at the end, so the appearance is more polished than a rag quilt.
AS one poster said, you can make a project any size you want just by adding extra blocks/rows and once done, it's all done - no waiting for it to be bound, etc.