Unlike other spinners, WordAi fully understands what each word content means. It doesn't view sentences as just a list of words, it views them as real things that interact with each other. This human like understanding allows WordAI to automatically rewrite entire sentences from scratch. This high level of rewriting ensures that Google and Copyscape can't detect your content while still remaining human readable!
Google is getting VERY good at catching spun content so you'd better be talented at manual spins. If they DO catch you, of course they'll spank you... and hard. So anything you use spun content on is inherently AT RISK. Worse yet... Google gets better at finding spun/poor content every year. So in the longrun you're screwed. I'd weight your other options and see if you couldn't find a cheaper source for manually hand written content.
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.
Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.