gRPC is one of the best decisions we've made at our company. Here's the longer blog post - https://dropbox.tech/infrastructure/courier-dropbox-migration-to-grpc

gRPC is one of the best decisions we've made at our company. Here's the longer blog post - https://dropbox.tech/infrastructure/courier-dropbox-migration-to-grpc https://dropbox.tech/infrastructure/courier-dropbox-migratio..., but some things: 1. Performance 2. It's hard to make changes that are backwards incompatible via protobuf (reduces significant source of bugs) 3. Great, standardized observability for every service. Small services don't really need too many custom metrics, since we log a LOT of metrics at the RPC layer 4. Standardization at the RPC layer lets us build useful generic infrastructure - like a load testing framework (where users only need to specify the RPC service, method, and parameters like concurrency, RPS).