It looks like a hybrid of Big Query / Looker for your financial data that lives in Stripe, with a lot of help to make it easier for users.
Imagine if you were a small and/or non-technical shop who used Stripe for your payments. This offers a window to produce good looking reports about the business without needing to keep track of that information in parallel outside of Stripe.
They have all sort of pre-run queries for MRR, Payment Methods, etc. which offers _huge_ benefit to those people who can get some great insights for no added work.
So, what does this software actually do? My company uses Stripe and it is not immediately clear.