I agree with her...it is a story of descent and redemption. It embodies the old saying “the road to hell is paved with good intentions.” Highly recommend.
I would say there was minimal redemption for Walt. A little but he was just too far gone for any real redemption and he knew it. The tune for the ending scene was absolutely perfect.
http://www.youtube.com/watch?v=0pwc0klMRSQ