I've been using WordAI for a couple weeks now and I have to say that I'm very impressed with its uses over other spinners. You get 2.5 million spun words a month for both the API and the web spinner... more than I can use for myself and my clients, and I'm even spinning Kontent Machine articles with it which are around 25,000 words on average.
My favorite part is that I can choose to spin an article on multiple levels. You can spin paragraphs/lists, paragraph order/randomization, sentences, and synonyms/phrases. You can pick any combination of these that you like - I write or have my writer write our own articles to use, so I'll spin just the sentences/synonyms and the articles look VERY readable [I use the most readable setting] and I still get a 90+% unique article.
For 20 bones a month... it's well worth the time it saves manually spinning yourself, especially when you are the type that likes high quality articles.
Also to note I am just a random user and have no affiliation with WordAI, I'm not even using the affiliate link. Thanks WordAI ;D
They work flawlessly together for me man. The spins do take 3-5 minutes, but the quality is worth it. The combination is beyond perfect for Tier 2 and above. You could even use this for Tier 1
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By the way, I was the guy that suggested the CSS code