Developer velocity

By abstracting as much of the underlying infrastructure and ceremony around running web services as possible, Cloud Functions allow developers to devote more time to writing code that solves business problems. This represents an incredible shift in both time and effort from things that were once necessary but did not directly drive business value to delivering results quickly and consistently.

Microservice architectures allow teams to move quickly by isolating functionality into reusable and composable services. This is extremely true with FaaS solutions, where each unit of work can be isolated to a dedicated service. Whereas microservices make it possible for developers to deliver features in days, functions make it possible to deliver on the scale of hours.