Tried it today - turning 12000 words of random notes into a PowerPoint deck. It basically just cut-and-pasted it into a pretty shit presentation. Not even particularly well formatted (not quite into additional limb or a missing finger territory).
Then asked it to compose an email thanking my co-worker for enrolling me in the trial. Was so fawning and gushing I actually blushed.
Deeply underwhelmed by Co-Pilot for office.