I haven't heard people being disappointed in QAYG outcome. Depending on the technique, I've heard some folks not liking the extra hand work, or possibly not wanting to use sashing in their design, but there are lots of different methods. Before I got my LA, I did all my larger quilts & throws QAYG. The first one is the Lap Quilting method by Georgia Bonesteel, where you whip stitch the backing together as you go:
http://www.quiltingboard.com/picture...lt-t85296.html
These were made using the sashing method:
http://www.quiltingboard.com/picture...s-t103513.html
Get the book: Machine quilting in sections, by Marti Michel. I think she has the most variety of techniques:
http://www.amazon.com/Marti-Michell-...ng+in+sections