Nice write-up! This is a great example of throwing out "best practices" and being truly user/product-centred. Even down to your trial strategy.
It reminds me of YNAB's trial[^1] strategy of offering 34 days. It gives folks just enough time with their app and process. I wish YNAB's trial extended to ~60 days since my "ah ha!" moment was only around then. That's another conversation, though.