I do, I find it an incredibly useful tool that allows me to do my work better and deliver more comprehensive write-ups etc.
I am a self employed business consultant, I use my paid subscription as my personal PA.
I will feed in my thoughts/conclusions/observations/findings. Tell the platform exactly what I want it to create from my input, then tweak, by the 4th or 5th version, I have a piece of work that would have taken me 3 days to write up but made it happen in one morning (And can bill accordingly).. the skill is in working with the platform, learning how to guide/prompt it to deliver what you want, have a paid account so it learns your history and (Very important) in your account settings, give it strict parameters in how it delivers it's answers.
So.. do you use AI as a real tool or play with it for fun/use like Google?