Adding my own DP of a very easy product change. The agent knew right away what card I was talking about, was fairly upbeat and the whole thing was done in about 5 minutes.

My call was pretty much verbatim what is shown in this video with the same disclosures read out.
Interestingly, there was no mention about pro-rating my boundless annual fee.

Held a Boundless for over a year. Lifetime titanium, not getting much value out of the brilliant anymore with the higher annual fee and the annoyance of monthly dining credits, so I'll downgrade that one to the $95 Amex after my next annual fee posts. Maybe Amex will try to lure me back in the future with an upgrade offer