Brain Tea review for Shopify Subscriptions

I'm feeling frustrated and disappointed because I've been searching for hours for a live store that uses this app to see how it works in real-time, but I haven't had any luck. even their support chat doesn't want to share any resources. I'm surprised that the Shopify tech team hasn't created a demo store when every crappy app in the store seems to have one. I wonder what kind of tech team is working in there, and I think someone should be held accountable for this negligence.