The thing is, all of these AI content generation tools are designed to help you WRITE. They aren't a plug and play solution like most people imagine them to be. Sure, on lower tiers, or on PBNs this content will do just fine. However, if you're building a money site, you will need to tweak the content and fact check it to make it readable. You want to use the AI content as a base and then turn it into something meaningful that addresses the search query. Remember, that's all that matters. As long as you are answering the search query properly, no one gives a fuck if it is AI generated content or not. If you are fluffing through your blog posts then regardless of who wrote it, or how good it sounds, your content is useless. You want content that serves it's purpose (addresses the search intent), at that point the grammar and the actual writing become less important. Just exercise common sense and you will be fine.