How to choose
Be honest about what you are automating. Agents are strong at multi step work with a clear definition of done and a way to check the result. They are weak at judgment calls with no verifiable output. Automate the first kind and keep the second.
Two things to check before committing
First, what happens when it fails partway through, and whether you can tell that it did.
Second, what the run actually costs, because agentic work consumes far more tokens than a conversation and the pricing pages rarely make that obvious.
Start narrow
The teams getting real value from agents automated one boring, well defined, frequently repeated task first. The ones that did not tried to automate a whole role.