> I think most people assume that gRPC is what Google is built on, therefore it must be good.

Dropbox[1], Netflix[2], Apple[3], Microsoft[4], Slack[5], and lots more are all either built on, or heavily use, and/or contribute to various pieces of gRPC and the ecosystem around it.

[1]: https://dropbox.tech/infrastructure/courier-dropbox-migratio...

[2]: https://netflixtechblog.com/practical-api-design-at-netflix-...

[3]: https://github.com/grpc/grpc-swift

[4]: https://learn.microsoft.com/en-us/aspnet/core/grpc/?view=asp...

[5]: https://slack.engineering/how-big-technical-changes-happen-a...