I've used it for two major things just this month and it has opened my eyes to what a time saver it was.
I use it for work to find new engineering/industrial furnace companies in any given geography and get an excel tabled list about the companies along with their relative size (employees/sales) what type of furnaces/processes they run, what atmospheres are in their furnaces (many types of furnaces purposely put gases that are not air in their furnaces to inert them or use them as a reactive atmosphere with their product).
Our company uses gemini (google) and I have created a "GEM" that all I need to do is type in a name of a city and it will give me all of these companies in a tabulated list (with all the information I want, furnace/process types, company website, company size, what gases are used there for their furnaces, even a list of technical engineers at their company off linkedin). All for within whatever radius of that city I ask (50 miles, 150 miles, etc).
All of this for a single city would take me or a secretary of some sort googling probably a few days. It takes gemini 30 seconds tops.
I then took this to help my wife. She is trying to get back into the workforce/career now that our youngest son (autistic) is out of HS. She was a SAHM who would find part time jobs that she could do on her own schedule over the years due to his schooling, etc.
Her resume was so splotchy and she was getting nearly no hits and even if she did it was short over the phone interviews that went no where. She was getting very discouraged.
I took her resume and asked gemini to help based on landing a job in "xyz" field for someone coming back into the work forced after more than a 20 years of being a SAHM and a lot of short term spot jobs.
It gave ways to combine work experience from multiple positions into just a few, gave timelines instead of exact dates and reworded a number of the bullet points.
She started sending that out 1.5 weaks ago, had 2 or 3 good interviews since, and is almost certain to land 1 of the positions this week.
Not going to lie, I am pretty amazed at the AI crap since I started giving it a shot at the beginning of Jan.
However, I still tell recruiters on LinkedIn that I won't teach AI math/chemistry as I won't help Skynet take over.