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.
Spinrewriter has a decent Google pagerank and bad results in terms of Yandex topical citation index. We found that Spinrewriter.com is moderately ‘socialized’ in respect to Facebook shares (20.2K) and Google+ shares (41). According to MyWot, Siteadvisor and Google safe browsing analytics, Spinrewriter.com is quite a safe domain with mostly positive visitor reviews.
Notice: Because of the 3 days free trial, we must use Paypal's subscription button even for a one-time price. Unfortunately Paypal has a bug that only allows you to set max 5 years for the subscription. So when you see Paypal's notice that your one-time fee is actually a subscription that will be renewed in 5 years, in fact it is not true, it is a one-time forever payment, NOT renewable after 5 years.
When you integrate Perfect Tense with WordAi, Perfect Tense will check any text you spin for grammatical errors. Perfect Tense will then add those spelling and grammatical errors as synonyms. This means that your spintax will be more unique and more readable. When using Perfect Tense with WordAi, your spun content will often end up even higher quality than the original.
After rewriting and keeping the dynamics of the writing same, our tool passes it through a plagiarism checker. This ensures that the legal standard of plagiarism is maintained after rewriting the article. After all this process, a final rewritten form is presented to you. All this process may require some time depending upon the nature and length of the article to be rewritten.
4. Tier 2 content (content that is keyword rich and relevant to your niche. Doesn’t have to be all that readable, it just has to be indexable by a search engine.)– Here put same options as with the Tier 1 content situation with the only difference that you set the 1st input to “Regular.” It is important that lower tiers have a lower quality of content compared to upper tiers.