Many people will outsource this task to well educated content writers and can be a pitfall when it comes to getting that quality content written for your website. This is especially true in the 'you get what you pay for' nature of the business when it comes to choosing an adequate content writer that is not only cheap but someone that also produces high quality articles which are relevant to the subject.
Think of it this way: What do you have more chance of hitting, a distant, tiny target or the broad side of a barn? For the sake of search engine optimization, you want your website to be the broad side of barn. The more quality articles, or unique readable content, your website or blog offers to search engines (and therefore the general public) the more exposure your website will receive from major search engines.
Spin Rewriter integrates with almost any SEO software. This allows you to post high quality articles quickly and easily. The only drawback is that you only get something like 300 API requests every 24 hours. You can quickly burn through this if you’re doing multiple campaigns. The developer does not currently offer a plan for heavy API users but maybe they will in the future.