The "Cotton Theory" is beautiful work, but very stiff and does not make cozy soft quilts. It takes lots of fabric to make the folds. Works best for table-runners, place-mats and rugs.
It is not as easy as it looks, on quilts it is easy for your rows to start to wonder and not be straight. All that top and decorative stitching makes your projects more like a magic carpet, especially if you are looking for a soft snuggly type quilt.
I would strongly suggest to start with a small project first.