I use serverless successfully - handing tens of millions of annual revenue. We do this in a handful of small services, none of which gets much traffic. The alt

I use serverless successfully - handing tens of millions of annual revenue. We do this in a handful of small services, none of which gets much traffic. The alternatives (e.g. app-engine, container in vm, or k8s) all require more infrastructure, would cost more (no scaling to zero), and are overall less suited for the kinds of problems we expect to see.