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
Think of it this way: What do you have more chance of hitting, a distant, tiny target or the broad side of a barn? For the sake of search engine optimization, you want your website to be the broad side of barn. The more quality articles, or unique readable content, your website or blog offers to search engines (and therefore the general public) the more exposure your website will receive from major search engines.
I love EVERYTHING!!!! Spin Rewriter is extremely easy to use, and the quality is the best available on the market... PERIOD!!! Even if you are new to marketing, you know that content is a major cornerstone. We use to spend thousands of dollars having content developed. Using Spin Rewriter has cut our costs by 90%. The best part is we did not have to sacrifice quality in order to increase production.