I think the content AI is great and d big move in the right direction. Although I admit I was slightly disappointed to see it wasn't integrated in the text and email templates (the basic html ones under marketing>templates).
So many businesses create SMS templates to send out for marketing purposes and this is precisely what AI would be so useful for...except it's not available in those parts of GHL. Thus, I think the content AI should be placed pretty much anywhere there is a text editor for copy purposes.