Great read! The "Churn rates" section was super interesting. Our SaaS has hovered around 4-5% churn rate. Glad to see that's doing pretty OK!
Interestingly enough in December we increased our prices by quite a lot (percentage wise, $2/month to $6/month). That month we saw an 8% churn rate, and January 6%, and this month looking like a bit less. It's going to be really interesting to see what happens in the future.
The jury is not in yet, but it feels that the voluntary churn is a lot less for the customers paying more, compared to the lower price point.