Seriously, if you have a blog or a collection of web 2.0 properties, you want to build some authpority to your additional tier 2 and 3 sites, you want backilinks and endless content for any purpose, then this tool is for you. No matter what business you are in, you are going to need content of some degree and spin rewriter 9 is the perfect solution with out any doubt.
I've ranked websites in the past with spun content, and now they are still on #1 position of google. First year (2014) google found me because my spun was really bad, many paragraphs were just copied and my position drop from #2 to around #20 after a panda update. Later I cleaned all my text with better spun (I didn't buy any article!), my ranking went up again, and with more backlinks I reached #1 and it is still there