ContentSolution is a good tool but I wouldn't suggest you to rely on it for what has to be done by you. I'm not even suggesting that you should rewrite articles. The best results that you could get is by writing your own unique articles.
Not just Article Spinner help you.Are 3-4 more on the market you can use and are very easy to set up and run:article multiplier,article rewriter,article content generator,etc and of course,you must to use an "article submitter" to make your work go faster.