I bought and tested several AI writing tools, and some are really great.
I have Nichesss, Contentbot, Peppertype, Word Hero, and Content Villain. Sometimes, I use ShortlyAI too, and it is excellent!
You have great tools, but it must be psychological: when a new tool appears, you are always tempted to buy it! "Just in case it is better" or because you HAVE to have it! Gotta catch 'em all :)
I confess I bought Creaite.ai (after a free test). Seriously, it is a no-brainer (including unlimited words). I don't regret it. I put a lot of faith in this tool and Simon, the designer.
Of course, the tool is just about a few months old and imperfect. Although the output is really nice. I read all the questions to Simon about Creaite, and I can tell you the roadmap is very promising.
I have nothing to do with that company, but sometimes, it is just an intuition! And I feel like I just bought the future ideal tool for AI writing. Go for it, you won't regret it, I am sure! Apparently, in terms of sustainability, there are 2 older and well-established companies behind this one... And what about the legendary quality behind Swiss companies!? :)