Owner is a scammer who has been banned from major SEO forums for fraudulent and deceptive practices. You might be willing to look past the fact that the owner of this product creates fake accounts to post fake reviews and lies about the product if the product itself was actually good, but unfortunately Spinner Chief itself is filled with half baked buggy features (which are advertised as working completely) and can't go more than 10 minutes without crashing. All in all it is a complete waste of money and time.
If you have not used a spinner before then I would suggest that you first use something that require more human imput like The Best Spinner or Spinner Chief in order to understand the basic principles. However if you must go fully auto then I would suggest you go for Wicked Article Creator. I have it and understand it is similar to wordAI but a one off fee of $47.
Nobody is immune to spelling and grammatical errors, not even me. It doesn't matter how many times you proofread your content, sometimes an error slips through the cracks. But, too many errors in your writing are bad for article writing services business and can also hurt your reputation over time. If customers are annoyed by poor grammar on social media or on a small blog post, just think about how they will feel if they receive an email or eBook laced with these errors.
In this harsh industry who can't implement a small number of extra profit? Another upside will be that you can construct right up your cache of primary subject material and help to increase your good reputation for posting and potentially attract some more significant paying users. Lastly, simply just believe that of the experience you can be developing by owning to groundwork some of the ideas you generate about. You can be, or will be soon, a fountain of inadequate information.