I think ChatGPT is first and only AI-assisted writing tool I’ve used. It’s good as a co-pilot but you’ve got to iterate with it and give it multiple prompts and suggestions to get somewhere good with it. Don’t expect it to come up with good marketing copy if you’re too lazy or don’t know enough about your value proposition to give it the input it needs.
I’m intrigued by Notion AI, but haven’t used it yet. I’ve yet to find an obvious use case yet where it would benefit me yet and the onboarding was quite minimal so it didn’t activate me yet.