There was a similar thread a while ago entitled "What is good Article Spinner and where i can get it..?", and my comments were as follows;
I might be unintentionally biased, but I do have Lifetime Membership to SpinRewriter.com, which I regard as being real top-tier, based on the quality, uniqueness and most importantly, the readability of the articles I put into the program. I have tried all the others including TheBestSpinner, WordAI, and SpinnerChief, with sometimes dubious and nonsensical results.
Writing is my passion, and I have Diamond Level Expert Author status on Ezinearticles.com (PR6), which is arguably, the most renowned article writing platform in the world. My personal profile page here has PR2, which is indicative of the link juice linked to this site, whilst I also have 250+ articles in 44+ different niches.
Please PM me for additional advice on Article Spinner options to enable you to make an informed decision, and possible assistance with article writing. I most certainly do not want to hog this post, neither be in violation of any protocol issues, because I really adore and treasure BBHF as being the authentic BEST among it's peers.
To me therefore, it is all about taking an informed decision, but it is equally essential that you "try before you buy".
Regards.