Anyone else using Copilot Pro?

Hi guys! ?

I got an email from Microsoft inviting me to try Copolit Pro for a month. I took it. It’s $27 per month if I keep it? I do have a personal 365 sub too. So far, I can not find the benefits of free vs. paid. It is the same for me other than in Word it can summarize my diary, and other doc I have written. Etc? It isn’t obvious how to use this thing. Like, create your own Copilot? I tried, but I don’t know if it works as I fed it data and it was still clueless. Any chance you guys have like advice, tips, tutorials, or things to try out? Etc. As it stands, it just seems to be a summary machine.