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.
Conclusion, if it boils down to speed, money and most readable spun content SpinnerChief Ultimate is what you want. If you’ve just got to have a web based solutions then WordAi is what you want. Remember we are using the cream of the crop here Word Ai Turing Edition and Spinner Chief III Ultimate. I believe the majority of users will opt for SpinnerChief Ultimate over WordAi Turning due to WordAi’s cost.
Quality readable content is key here. Google, for example, will recognize that people are leaving your site soon after arriving if they perceive that your site or blog is full of junk content. This is called "bounce rate." If your bounce rate is high, then people are quickly leaving your site. But for the sake of your business, to build your online reputation and brand, you want people to visit your site, stay for a while, and then keep revisiting over the long term.