Journeyed there and back again
I will be interested to read your experiences. When I looked into it, Print-on-Demand through Amazon was only available if you locked into Amazon as your sole outlet (I haven't checked lately, that may not be true any more). My co-author and I discussed this at length and decided that Amazon was a branch of the Evil Empire, and we also released through Smashwords, preventing us from using CreateSpace. Next time we have a business meeting, that decision will probably be re-assessed.