Again maybe I'm missing something but since it's built on top of Stripe, I would expect that it does more than just Stripe. Otherwise I don't see why I would try to install this?
For £80,000 a month with transactions each being £100.
* Stripe Billing is £400 a month or £4,800 a year. * Stripe Tax £800; a month or £9,600. * Payment Links is £320; a month or £3840 a year.
Total per month: £1,520. Total per year £18,240.
And that would be a small company.