At the time I did my first printed book, in 2004, there were only a handful of POD online sites like Lulu. I chose CafePress instead and have been very happy with the quality (AND, they are much easier to format for than CS, imo), BUT they no longer focus much on marketing books, so, while the printed copy looks better than the proof I got from Amazon's CreateSpace, recently, I am going to be using CS, if they can get a couple of issues resolved. However, I intend to give BookBrewer a serious look for ebook and POD.