[throw03172019]

I’d go for Stripe because you’ll seem more professional, especially as a B2B SaaS. It’s really not that bad, they’ve made it easy to integrate payment collection and a few webhooks to get you started.

[yen223]

A pretty decent in-between approach, if you aren't willing to go all-in with payment integration, is to use Stripe's hosted invoice page: https://stripe.com/docs/billing/invoices/hosted

[penguinium]

does that cost extra?