Awesome :) One big issue (with actual effect on revenue of your users) you guys could solve better would be handling delinquent/expiring cards better. We had to built some things in house to deal with this on our end, as once you have a non trivial amount of paying customers it can become at least a small pain. I know there are webhooks for failed payments etc but this stuff is really difficult to surface in the web interface.
Hey Alex, Churn Buster (http://churnbuster.io/) is available via Stripe Connect to solve exactly this problem. We're in private beta right now, so please email me at andrew@churnbuster.io if you'd like to take it for a spin. We've got a number of paying customers already (including some folks who previously had their own basic webhooks integration) and they're all saving much more in rescued transactions than they're investing in the product. Also, it's a 30-day free trial, so you literally can't lose! :-)
